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	<title>Side Notes &#187; array</title>
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<title>Side Notes</title>
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		<title>Array to Graph</title>
		<link>http://blog.snaky.org/2008/07/05/array-to-graph/</link>
		<comments>http://blog.snaky.org/2008/07/05/array-to-graph/#comments</comments>
		<pubDate>Sat, 05 Jul 2008 09:17:33 +0000</pubDate>
		<dc:creator>Simon</dc:creator>
				<category><![CDATA[PHP]]></category>
		<category><![CDATA[array]]></category>
		<category><![CDATA[diagramm]]></category>
		<category><![CDATA[funktionen]]></category>
		<category><![CDATA[graph]]></category>

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		<description><![CDATA[<img src="http://blog.snaky.org/wp-content/uploads/2008/07/php_16.png" width="16" height="16" alt="" title="PHP" /><br/>Immerwieder passiert es. Man hat Daten die man gerne in einem Diagramm darstellen möchte. Da dies mitunter recht schwer sein kann, habe ich mir meine eigene PHP-Funktion geschrieben, die es mir ermöglicht ein Array direkt mit einem Diagramm zu visualisieren. Um eine solche Funktion zu Programmieren benötigen wir mehrere Teile. 0. Der Funktionskopf sieht so [...]]]></description>
			<content:encoded><![CDATA[<img src="http://blog.snaky.org/wp-content/uploads/2008/07/php_16.png" width="16" height="16" alt="" title="PHP" /><br/><p>Immerwieder passiert es. Man hat Daten die man gerne in einem Diagramm darstellen möchte. Da dies mitunter recht schwer sein kann, habe ich mir meine eigene PHP-Funktion geschrieben, die es mir ermöglicht ein Array direkt mit einem Diagramm zu visualisieren.</p>
<p>Um eine solche Funktion zu Programmieren benötigen wir mehrere Teile.<br />
<span id="more-45"></span><br />
0. Der Funktionskopf sieht so aus</p>

<div class="wp_syntax"><div class="code"><pre class="php" style="font-family:monospace;"><span style="color: #000000; font-weight: bold;">function</span> arraytograph<span style="color: #009900;">&#40;</span><span style="color: #000088;">$data</span><span style="color: #339933;">,</span><span style="color: #000088;">$w</span><span style="color: #339933;">=</span><span style="color: #cc66cc;">300</span><span style="color: #339933;">,</span><span style="color: #000088;">$h</span><span style="color: #339933;">=</span><span style="color: #cc66cc;">100</span><span style="color: #339933;">,</span><span style="color: #000088;">$show_keys</span> <span style="color: #339933;">=</span> <span style="color: #009900; font-weight: bold;">true</span><span style="color: #339933;">,</span><span style="color: #000088;">$label</span> <span style="color: #339933;">=</span> <span style="color: #0000ff;">''</span><span style="color: #009900;">&#41;</span></pre></div></div>

<p>1. Prüfen ob die übergebenen Werte gefüllt sind. Des Weiteren prüfen wir, welche Achsenbeschriftung angezeigt werden soll. Auch definieren wir hier den Standard Abstand nach oben und unten.</p>

<div class="wp_syntax"><div class="code"><pre class="php" style="font-family:monospace;">	<span style="color: #b1b100;">if</span> <span style="color: #009900;">&#40;</span><span style="color: #339933;">!</span><span style="color: #990000;">isset</span><span style="color: #009900;">&#40;</span><span style="color: #000088;">$data</span><span style="color: #009900;">&#41;</span> <span style="color: #339933;">||</span> <span style="color: #990000;">empty</span><span style="color: #009900;">&#40;</span><span style="color: #000088;">$data</span><span style="color: #009900;">&#41;</span><span style="color: #009900;">&#41;</span>	<span style="color: #009900;">&#123;</span>
		<span style="color: #b1b100;">return</span> <span style="color: #009900; font-weight: bold;">FALSE</span><span style="color: #339933;">;</span>
	<span style="color: #009900;">&#125;</span>
	<span style="color: #b1b100;">if</span><span style="color: #009900;">&#40;</span><span style="color: #000088;">$label</span> <span style="color: #339933;">==</span> <span style="color: #0000ff;">'value'</span><span style="color: #009900;">&#41;</span><span style="color: #009900;">&#123;</span>
		<span style="color: #000088;">$show_precent</span> <span style="color: #339933;">=</span> <span style="color: #009900; font-weight: bold;">false</span><span style="color: #339933;">;</span>
		<span style="color: #000088;">$show_number</span> <span style="color: #339933;">=</span> <span style="color: #009900; font-weight: bold;">true</span><span style="color: #339933;">;</span>
	<span style="color: #009900;">&#125;</span>
	<span style="color: #b1b100;">elseif</span><span style="color: #009900;">&#40;</span><span style="color: #000088;">$label</span> <span style="color: #339933;">==</span> <span style="color: #0000ff;">'percent'</span><span style="color: #009900;">&#41;</span><span style="color: #009900;">&#123;</span>
		<span style="color: #000088;">$show_precent</span> <span style="color: #339933;">=</span> <span style="color: #009900; font-weight: bold;">true</span><span style="color: #339933;">;</span>
		<span style="color: #000088;">$show_number</span> <span style="color: #339933;">=</span> <span style="color: #009900; font-weight: bold;">false</span><span style="color: #339933;">;</span>
	<span style="color: #009900;">&#125;</span>
	<span style="color: #b1b100;">else</span><span style="color: #009900;">&#123;</span>
		<span style="color: #000088;">$show_precent</span> <span style="color: #339933;">=</span> <span style="color: #009900; font-weight: bold;">true</span><span style="color: #339933;">;</span>
		<span style="color: #000088;">$show_number</span> <span style="color: #339933;">=</span> <span style="color: #009900; font-weight: bold;">false</span><span style="color: #339933;">;</span>
	<span style="color: #009900;">&#125;</span>
	<span style="color: #000088;">$pic_border_top</span> <span style="color: #339933;">=</span> <span style="color: #cc66cc;">5</span><span style="color: #339933;">;</span>
	<span style="color: #000088;">$pic_border_bottom</span> <span style="color: #339933;">=</span> <span style="color: #cc66cc;">5</span><span style="color: #339933;">;</span></pre></div></div>

<p>2. Die Schlüssel des Arrays holen, um die Achsenbeschriftung zu zeichnen</p>

<div class="wp_syntax"><div class="code"><pre class="php" style="font-family:monospace;">	<span style="color: #666666; font-style: italic;">// getting the keys from array</span>
	<span style="color: #000088;">$keys</span> <span style="color: #339933;">=</span> <span style="color: #990000;">array_keys</span><span style="color: #009900;">&#40;</span><span style="color: #000088;">$data</span><span style="color: #009900;">&#41;</span><span style="color: #339933;">;</span></pre></div></div>

<p>3. Um den Platz für die Achsenbeschriftung zu machen, wird der Längste Schlüssel gesucht. Um genug Platz zu haben, wird die pro Zeichen 6 Pixel gerechnet. Damit die Schrift nicht am Boden &#8220;aufsetzt&#8221; werden nochmals 12 Pixel hinzugerechnet.</p>

<div class="wp_syntax"><div class="code"><pre class="php" style="font-family:monospace;">	<span style="color: #666666; font-style: italic;">// the keys should be displayed, so add a stripe for displaying the keys</span>
	<span style="color: #666666; font-style: italic;">// find the longest key. the length of string *6pixel per letter are added to the border bottom</span>
	<span style="color: #b1b100;">if</span><span style="color: #009900;">&#40;</span><span style="color: #000088;">$show_keys</span><span style="color: #009900;">&#41;</span><span style="color: #009900;">&#123;</span>
		<span style="color: #000088;">$max</span> <span style="color: #339933;">=</span> <span style="color: #cc66cc;">0</span><span style="color: #339933;">;</span>
		<span style="color: #b1b100;">for</span><span style="color: #009900;">&#40;</span><span style="color: #000088;">$i</span><span style="color: #339933;">=</span><span style="color: #cc66cc;">0</span><span style="color: #339933;">;</span><span style="color: #000088;">$i</span></pre></div></div>

<p>4. Damit die Möglichkeit besteht, nicht nur die relativen Prozentralen anzeigen zu lassen, suchen wir erneut den längsten String in dem Array. Diesmal jedoch auf die Werte bezogen. Pro Zeichen benutzen wir diesmal 8 Pixel. Wenn Prozentzahlen angezeigt werden sollen, so wird der obere freie Platz um 32 Pixel vergrößert.</p>

<div class="wp_syntax"><div class="code"><pre class="php" style="font-family:monospace;">	<span style="color: #666666; font-style: italic;">// the number should be displayed at the top of the diagramm</span>
	<span style="color: #b1b100;">if</span><span style="color: #009900;">&#40;</span><span style="color: #000088;">$show_number</span><span style="color: #009900;">&#41;</span><span style="color: #009900;">&#123;</span>
		<span style="color: #000088;">$max_num</span> <span style="color: #339933;">=</span> <span style="color: #cc66cc;">0</span><span style="color: #339933;">;</span>
		<span style="color: #b1b100;">for</span><span style="color: #009900;">&#40;</span><span style="color: #000088;">$i</span><span style="color: #339933;">=</span><span style="color: #cc66cc;">0</span><span style="color: #339933;">;</span><span style="color: #000088;">$i</span><span style="color: #000088;">$pic_border_top</span><span style="color: #009900;">&#41;</span><span style="color: #009900;">&#123;</span>
			<span style="color: #000088;">$pic_border_top</span> <span style="color: #339933;">+=</span> <span style="color: #000088;">$max_num</span><span style="color: #339933;">*</span><span style="color: #cc66cc;">8</span><span style="color: #339933;">;</span>
		<span style="color: #009900;">&#125;</span>
	<span style="color: #009900;">&#125;</span>
	<span style="color: #b1b100;">if</span><span style="color: #009900;">&#40;</span><span style="color: #000088;">$show_precent</span><span style="color: #009900;">&#41;</span><span style="color: #009900;">&#123;</span>
		<span style="color: #000088;">$pic_border_top</span> <span style="color: #339933;">+=</span> <span style="color: #cc66cc;">32</span><span style="color: #339933;">;</span>
	<span style="color: #009900;">&#125;</span></pre></div></div>

<p>5. Um die relative Höhe auszurechnen suchen wir den größten Wert in dem Datenarray und setzten alle anderen Werte in Relation zu diesem Wert.</p>

<div class="wp_syntax"><div class="code"><pre class="php" style="font-family:monospace;">	<span style="color: #666666; font-style: italic;">//Convert the values to percent values</span>
	<span style="color: #000088;">$hundredp</span> <span style="color: #339933;">=</span> <span style="color: #990000;">max</span><span style="color: #009900;">&#40;</span><span style="color: #000088;">$data</span><span style="color: #009900;">&#41;</span><span style="color: #339933;">;</span>
	<span style="color: #000088;">$newarray</span> <span style="color: #339933;">=</span> <span style="color: #990000;">array</span><span style="color: #009900;">&#40;</span><span style="color: #009900;">&#41;</span><span style="color: #339933;">;</span>
	<span style="color: #b1b100;">foreach</span> <span style="color: #009900;">&#40;</span><span style="color: #000088;">$data</span> <span style="color: #b1b100;">as</span> <span style="color: #000088;">$el</span><span style="color: #009900;">&#41;</span> <span style="color: #009900;">&#123;</span>
		<span style="color: #000088;">$newarray</span><span style="color: #009900;">&#91;</span><span style="color: #009900;">&#93;</span> <span style="color: #339933;">=</span> <span style="color: #990000;">intval</span><span style="color: #009900;">&#40;</span><span style="color: #000088;">$el</span> <span style="color: #339933;">/</span> <span style="color: #000088;">$hundredp</span> <span style="color: #339933;">*</span> <span style="color: #cc66cc;">100</span><span style="color: #009900;">&#41;</span><span style="color: #339933;">;</span>
	<span style="color: #009900;">&#125;</span></pre></div></div>

<p>6. Um nun ein Diagramm zu erstellen, nehmen wir die Parameter $w und $h und rufen mit diesen die Funktion imagecreatetruecolor auf. Um später verschiedene Farben benutzen zu können definieren wir uns hier auch gleich ein paar Farben</p>

<div class="wp_syntax"><div class="code"><pre class="php" style="font-family:monospace;">	<span style="color: #666666; font-style: italic;">// let's start with the image-creation</span>
	<span style="color: #000088;">$im</span> <span style="color: #339933;">=</span> <span style="color: #990000;">imagecreatetruecolor</span><span style="color: #009900;">&#40;</span><span style="color: #000088;">$w</span><span style="color: #339933;">,</span> <span style="color: #000088;">$h</span><span style="color: #009900;">&#41;</span><span style="color: #339933;">;</span>
	<span style="color: #666666; font-style: italic;">//define colors.</span>
	<span style="color: #000088;">$col_background</span> <span style="color: #339933;">=</span> <span style="color: #990000;">imagecolorallocate</span><span style="color: #009900;">&#40;</span><span style="color: #000088;">$im</span><span style="color: #339933;">,</span> <span style="color: #cc66cc;">0</span><span style="color: #339933;">,</span> <span style="color: #cc66cc;">0</span><span style="color: #339933;">,</span> <span style="color: #cc66cc;">0</span><span style="color: #009900;">&#41;</span><span style="color: #339933;">;</span>
	<span style="color: #000088;">$col_grid</span> <span style="color: #339933;">=</span> <span style="color: #990000;">imagecolorallocate</span><span style="color: #009900;">&#40;</span><span style="color: #000088;">$im</span><span style="color: #339933;">,</span> <span style="color: #208080;">0x53</span><span style="color: #339933;">,</span> <span style="color: #208080;">0x44</span><span style="color: #339933;">,</span> <span style="color: #208080;">0x01</span><span style="color: #009900;">&#41;</span><span style="color: #339933;">;</span>
	<span style="color: #000088;">$col_bars</span> <span style="color: #339933;">=</span> <span style="color: #990000;">imagecolorallocate</span><span style="color: #009900;">&#40;</span><span style="color: #000088;">$im</span><span style="color: #339933;">,</span> <span style="color: #208080;">0xb7</span><span style="color: #339933;">,</span> <span style="color: #208080;">0x6b</span><span style="color: #339933;">,</span> <span style="color: #208080;">0x1a</span><span style="color: #009900;">&#41;</span><span style="color: #339933;">;</span>
	<span style="color: #000088;">$col_text</span> <span style="color: #339933;">=</span> <span style="color: #990000;">imagecolorallocate</span><span style="color: #009900;">&#40;</span><span style="color: #000088;">$im</span><span style="color: #339933;">,</span> <span style="color: #cc66cc;">200</span><span style="color: #339933;">,</span> <span style="color: #cc66cc;">200</span><span style="color: #339933;">,</span> <span style="color: #cc66cc;">200</span><span style="color: #009900;">&#41;</span><span style="color: #339933;">;</span></pre></div></div>

<p>7. Um ein schönes Diagramm erstellen zu können muss es natürlich auch ein Raster geben. Hierzu werden zuerst die horizontalen Linien gezeichnet. Diese werden über die gesamte Breite des Bildes gezeichnet. Um natürlich die horizontalen Linien nur in dem Diagrammbereich zu zeichen, werden hier die Bereiche für die Schlüsselanzeige (unten) und die Werteanzeige(oben) subtrahiert/addiert.<br />
Bei den vertikalen Linien geben wir soviele Linien aus wie es auch Balken geben wird. Auch hier wird nur im Diagrammbereich gezeichnet und der Bereich für die Beschriftungen weggelassen. Mit der Variable $space definieren wir auch gleich die Breite der einzelnen Balken. Da wir natürlich nur begrenzt Platz für die Werte haben, setzen wir diese in eine Relation.</p>

<div class="wp_syntax"><div class="code"><pre class="php" style="font-family:monospace;">	<span style="color: #666666; font-style: italic;">// drawing the grid</span>
	<span style="color: #666666; font-style: italic;">//horizontal lines</span>
		<span style="color: #b1b100;">for</span> <span style="color: #009900;">&#40;</span><span style="color: #000088;">$i</span><span style="color: #339933;">=</span><span style="color: #cc66cc;">1</span><span style="color: #339933;">;</span> <span style="color: #000088;">$i</span><span style="color: #339933;">&amp;</span>lt<span style="color: #339933;">;=</span><span style="color: #cc66cc;">10</span><span style="color: #339933;">;</span> <span style="color: #000088;">$i</span><span style="color: #339933;">++</span><span style="color: #009900;">&#41;</span>	<span style="color: #009900;">&#123;</span>
			<span style="color: #990000;">imageline</span><span style="color: #009900;">&#40;</span><span style="color: #000088;">$im</span><span style="color: #339933;">,</span>
				<span style="color: #cc66cc;">0</span><span style="color: #339933;">,</span>
				<span style="color: #000088;">$i</span><span style="color: #339933;">*</span><span style="color: #009900;">&#40;</span><span style="color: #009900;">&#40;</span><span style="color: #000088;">$h</span><span style="color: #339933;">-</span><span style="color: #000088;">$pic_border_bottom</span><span style="color: #339933;">-</span><span style="color: #000088;">$pic_border_top</span><span style="color: #009900;">&#41;</span><span style="color: #339933;">/</span><span style="color: #cc66cc;">10</span><span style="color: #009900;">&#41;</span><span style="color: #339933;">+</span><span style="color: #000088;">$pic_border_top</span><span style="color: #339933;">,</span>
				<span style="color: #000088;">$w</span><span style="color: #339933;">,</span>
				<span style="color: #000088;">$i</span><span style="color: #339933;">*</span><span style="color: #009900;">&#40;</span><span style="color: #009900;">&#40;</span><span style="color: #000088;">$h</span><span style="color: #339933;">-</span><span style="color: #000088;">$pic_border_bottom</span><span style="color: #339933;">-</span><span style="color: #000088;">$pic_border_top</span><span style="color: #009900;">&#41;</span><span style="color: #339933;">/</span><span style="color: #cc66cc;">10</span><span style="color: #009900;">&#41;</span><span style="color: #339933;">+</span><span style="color: #000088;">$pic_border_top</span><span style="color: #339933;">,</span>
				<span style="color: #000088;">$col_grid</span><span style="color: #009900;">&#41;</span><span style="color: #339933;">;</span>
		<span style="color: #009900;">&#125;</span>
	<span style="color: #666666; font-style: italic;">//vertical</span>
		<span style="color: #000088;">$space</span> <span style="color: #339933;">=</span> <span style="color: #990000;">intval</span><span style="color: #009900;">&#40;</span><span style="color: #000088;">$w</span> <span style="color: #339933;">/</span> <span style="color: #990000;">count</span><span style="color: #009900;">&#40;</span><span style="color: #000088;">$newarray</span><span style="color: #009900;">&#41;</span><span style="color: #009900;">&#41;</span><span style="color: #339933;">;</span>
		<span style="color: #b1b100;">for</span> <span style="color: #009900;">&#40;</span><span style="color: #000088;">$i</span><span style="color: #339933;">=</span><span style="color: #cc66cc;">1</span><span style="color: #339933;">;</span> <span style="color: #000088;">$i</span><span style="color: #339933;">&amp;</span>lt<span style="color: #339933;">;=</span><span style="color: #990000;">count</span><span style="color: #009900;">&#40;</span><span style="color: #000088;">$newarray</span><span style="color: #009900;">&#41;</span><span style="color: #339933;">;</span> <span style="color: #000088;">$i</span><span style="color: #339933;">++</span><span style="color: #009900;">&#41;</span>		<span style="color: #009900;">&#123;</span>
			<span style="color: #990000;">imageline</span><span style="color: #009900;">&#40;</span><span style="color: #000088;">$im</span><span style="color: #339933;">,</span>
				<span style="color: #000088;">$i</span><span style="color: #339933;">*</span><span style="color: #000088;">$space</span><span style="color: #339933;">,</span>
				<span style="color: #000088;">$pic_border_top</span><span style="color: #339933;">,</span>
				<span style="color: #000088;">$i</span><span style="color: #339933;">*</span><span style="color: #000088;">$space</span><span style="color: #339933;">,</span>
				<span style="color: #000088;">$h</span><span style="color: #339933;">-</span><span style="color: #000088;">$pic_border_bottom</span><span style="color: #339933;">,</span>
				<span style="color: #000088;">$col_grid</span><span style="color: #009900;">&#41;</span><span style="color: #339933;">;</span>
		<span style="color: #009900;">&#125;</span></pre></div></div>

<p>8. Das Zeichnen der Balken<br />
Nun gehen wir das neue Array von vorne beginnend durch und zeichnen jeden Balken.<br />
Da wir wieder nur in dem Diagrammbereich zeichnen wollen, ziehen wir wieder die die $pic_border_top und $pic_border_bottom von den jeweiligen Werten ab. Hier gibt es auch die Möglichkeit die Werte relativ zueinander, also in Prozent, oder in absoluten Zahlen darzustellen. Mit der Variablen $show_percent werden relative Werte ausgegeben mit der Variablen $show_number werden absolute Zahlen angezeigt. Auch gibt es die Möglichkeit die Schlüssel mit anzeigen zu lassen, oder eben nicht</p>

<div class="wp_syntax"><div class="code"><pre class="php" style="font-family:monospace;">	<span style="color: #666666; font-style: italic;">// start drawing the datas</span>
	<span style="color: #b1b100;">for</span> <span style="color: #009900;">&#40;</span><span style="color: #000088;">$i</span><span style="color: #339933;">=</span><span style="color: #cc66cc;">0</span><span style="color: #339933;">;</span> <span style="color: #000088;">$i</span></pre></div></div>

<p>9. Da bisher keine einzige Ausgabe stattfand, können wir nun den Header senden und spezifizieren das es sich um ein png bild handelt. Danach geben wir aus dem erstellten Bild ein PNG aus und zerstören dies auch sogleich. So wird es asugegeben, jedoch nicht in einer datei gespeichert.</p>

<div class="wp_syntax"><div class="code"><pre class="php" style="font-family:monospace;">	<span style="color: #666666; font-style: italic;">//tell the browser that this will be a png image.</span>
	<span style="color: #990000;">header</span><span style="color: #009900;">&#40;</span><span style="color: #0000ff;">&quot;Content-type: image/png&quot;</span><span style="color: #009900;">&#41;</span><span style="color: #339933;">;</span>
&nbsp;
	<span style="color: #666666; font-style: italic;">//finally generate the image;</span>
	<span style="color: #990000;">imagepng</span><span style="color: #009900;">&#40;</span><span style="color: #000088;">$im</span><span style="color: #009900;">&#41;</span><span style="color: #339933;">;</span>
	<span style="color: #990000;">imagedestroy</span><span style="color: #009900;">&#40;</span><span style="color: #000088;">$im</span><span style="color: #009900;">&#41;</span><span style="color: #339933;">;</span></pre></div></div>

<p>So nun haben wir eine fertige Funktion die uns ein Bild ausgibt, sobald wir diese aufrufen.<br />
Da die Funktion mit dem Header arbeitet, können wir diese nicht einfach in den Quellcode einbinden, sondern müssen den Weg über eine neue Datei gehen.<br />
Also erstellen wir uns eine neue Datei die wir als Bild von einer anderen Datei aufrufen können. Sollten keine Daten zum Anzeigen übergeben werden, bricht das Script ab. Ansonsten holt es sich das Datenarray aus der übergebenen URL. Mit <a href="http://php.net/serialize">serialize</a> lassen sich Arrays in einen String codieren. mit der Funktion <a href="http://php.net/unserialize">unserialize</a> genau das Gegenteil, es wird also aus einem codierten String wieder ein Array geformt. Um die Verarbeitung zu erleichtern, wird nur ein Array übergeben das aus 3 Teilen besteht,</p>
<ul>
<li>den anzuzeigenden Daten</li>
<li>der Höhe</li>
<li>der Breite</li>
</ul>

<div class="wp_syntax"><div class="code"><pre class="php" style="font-family:monospace;"><span style="color: #b1b100;">if</span><span style="color: #009900;">&#40;</span><span style="color: #339933;">!</span><span style="color: #990000;">isset</span><span style="color: #009900;">&#40;</span><span style="color: #000088;">$_GET</span><span style="color: #009900;">&#91;</span><span style="color: #0000ff;">'data'</span><span style="color: #009900;">&#93;</span><span style="color: #009900;">&#41;</span><span style="color: #009900;">&#41;</span><span style="color: #009900;">&#123;</span>
	<span style="color: #990000;">die</span><span style="color: #009900;">&#40;</span><span style="color: #009900;">&#41;</span><span style="color: #339933;">;</span>
<span style="color: #009900;">&#125;</span>
<span style="color: #b1b100;">else</span><span style="color: #009900;">&#123;</span>
	<span style="color: #000088;">$data</span> <span style="color: #339933;">=</span> <span style="color: #990000;">unserialize</span><span style="color: #009900;">&#40;</span><span style="color: #990000;">stripslashes</span><span style="color: #009900;">&#40;</span><span style="color: #000088;">$_GET</span><span style="color: #009900;">&#91;</span><span style="color: #0000ff;">'data'</span><span style="color: #009900;">&#93;</span><span style="color: #009900;">&#41;</span><span style="color: #009900;">&#41;</span><span style="color: #339933;">;</span>
	<span style="color: #000088;">$cont</span> <span style="color: #339933;">=</span> <span style="color: #000088;">$data</span><span style="color: #009900;">&#91;</span><span style="color: #0000ff;">'data'</span><span style="color: #009900;">&#93;</span><span style="color: #339933;">;</span>
&nbsp;
	<span style="color: #b1b100;">if</span><span style="color: #009900;">&#40;</span><span style="color: #990000;">isset</span><span style="color: #009900;">&#40;</span><span style="color: #000088;">$data</span><span style="color: #009900;">&#91;</span><span style="color: #0000ff;">'h'</span><span style="color: #009900;">&#93;</span><span style="color: #009900;">&#41;</span><span style="color: #009900;">&#41;</span>
		<span style="color: #000088;">$h</span> <span style="color: #339933;">=</span> <span style="color: #000088;">$data</span><span style="color: #009900;">&#91;</span><span style="color: #0000ff;">'h'</span><span style="color: #009900;">&#93;</span><span style="color: #339933;">;</span>
	<span style="color: #b1b100;">if</span><span style="color: #009900;">&#40;</span><span style="color: #990000;">isset</span><span style="color: #009900;">&#40;</span><span style="color: #000088;">$data</span><span style="color: #009900;">&#91;</span><span style="color: #0000ff;">'b'</span><span style="color: #009900;">&#93;</span><span style="color: #009900;">&#41;</span><span style="color: #009900;">&#41;</span>
		<span style="color: #000088;">$b</span> <span style="color: #339933;">=</span> <span style="color: #000088;">$data</span><span style="color: #009900;">&#91;</span><span style="color: #0000ff;">'b'</span><span style="color: #009900;">&#93;</span><span style="color: #339933;">;</span>
	<span style="color: #b1b100;">if</span><span style="color: #009900;">&#40;</span><span style="color: #990000;">isset</span><span style="color: #009900;">&#40;</span><span style="color: #000088;">$data</span><span style="color: #009900;">&#91;</span><span style="color: #0000ff;">'keys'</span><span style="color: #009900;">&#93;</span><span style="color: #009900;">&#41;</span><span style="color: #009900;">&#41;</span>
		<span style="color: #000088;">$keys</span> <span style="color: #339933;">=</span> <span style="color: #000088;">$data</span><span style="color: #009900;">&#91;</span><span style="color: #0000ff;">'keys'</span><span style="color: #009900;">&#93;</span><span style="color: #339933;">;</span>
	<span style="color: #b1b100;">if</span><span style="color: #009900;">&#40;</span><span style="color: #990000;">isset</span><span style="color: #009900;">&#40;</span><span style="color: #000088;">$data</span><span style="color: #009900;">&#91;</span><span style="color: #0000ff;">'label'</span><span style="color: #009900;">&#93;</span><span style="color: #009900;">&#41;</span><span style="color: #009900;">&#41;</span>
		<span style="color: #000088;">$keys</span> <span style="color: #339933;">=</span> <span style="color: #000088;">$data</span><span style="color: #009900;">&#91;</span><span style="color: #0000ff;">'label'</span><span style="color: #009900;">&#93;</span><span style="color: #339933;">;</span>
<span style="color: #009900;">&#125;</span></pre></div></div>

<p>Sobald wir dies haben, können wir das ganze Zu einer kompletten Datei zusammensetzen.</p>

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</pre></td><td class="code"><pre class="php" style="font-family:monospace;"><span style="color: #000000; font-weight: bold;">&lt;?php</span>
<span style="color: #000000; font-weight: bold;">function</span> arraytograph<span style="color: #009900;">&#40;</span><span style="color: #000088;">$data</span><span style="color: #339933;">,</span><span style="color: #000088;">$w</span><span style="color: #339933;">=</span><span style="color: #cc66cc;">300</span><span style="color: #339933;">,</span><span style="color: #000088;">$h</span><span style="color: #339933;">=</span><span style="color: #cc66cc;">100</span><span style="color: #339933;">,</span><span style="color: #000088;">$show_keys</span> <span style="color: #339933;">=</span> <span style="color: #009900; font-weight: bold;">true</span><span style="color: #339933;">,</span><span style="color: #000088;">$label</span> <span style="color: #339933;">=</span> <span style="color: #0000ff;">''</span><span style="color: #009900;">&#41;</span><span style="color: #009900;">&#123;</span>
	<span style="color: #666666; font-style: italic;">// Check if the array isn't empty</span>
	<span style="color: #b1b100;">if</span> <span style="color: #009900;">&#40;</span><span style="color: #339933;">!</span><span style="color: #990000;">isset</span><span style="color: #009900;">&#40;</span><span style="color: #000088;">$data</span><span style="color: #009900;">&#41;</span> <span style="color: #339933;">||</span> <span style="color: #990000;">empty</span><span style="color: #009900;">&#40;</span><span style="color: #000088;">$data</span><span style="color: #009900;">&#41;</span><span style="color: #009900;">&#41;</span>	<span style="color: #009900;">&#123;</span>
		<span style="color: #b1b100;">return</span> <span style="color: #009900; font-weight: bold;">FALSE</span><span style="color: #339933;">;</span>
	<span style="color: #009900;">&#125;</span>
	<span style="color: #b1b100;">if</span><span style="color: #009900;">&#40;</span><span style="color: #000088;">$label</span> <span style="color: #339933;">==</span> <span style="color: #0000ff;">'value'</span><span style="color: #009900;">&#41;</span><span style="color: #009900;">&#123;</span>	
		<span style="color: #000088;">$show_precent</span> <span style="color: #339933;">=</span> <span style="color: #009900; font-weight: bold;">false</span><span style="color: #339933;">;</span>
		<span style="color: #000088;">$show_number</span> <span style="color: #339933;">=</span> <span style="color: #009900; font-weight: bold;">true</span><span style="color: #339933;">;</span>
	<span style="color: #009900;">&#125;</span>
	<span style="color: #b1b100;">elseif</span><span style="color: #009900;">&#40;</span><span style="color: #000088;">$label</span> <span style="color: #339933;">==</span> <span style="color: #0000ff;">'percent'</span><span style="color: #009900;">&#41;</span><span style="color: #009900;">&#123;</span>
		<span style="color: #000088;">$show_precent</span> <span style="color: #339933;">=</span> <span style="color: #009900; font-weight: bold;">true</span><span style="color: #339933;">;</span>
		<span style="color: #000088;">$show_number</span> <span style="color: #339933;">=</span> <span style="color: #009900; font-weight: bold;">false</span><span style="color: #339933;">;</span>
	<span style="color: #009900;">&#125;</span>
	<span style="color: #b1b100;">else</span><span style="color: #009900;">&#123;</span>
		<span style="color: #000088;">$show_precent</span> <span style="color: #339933;">=</span> <span style="color: #009900; font-weight: bold;">false</span><span style="color: #339933;">;</span>
		<span style="color: #000088;">$show_number</span> <span style="color: #339933;">=</span> <span style="color: #009900; font-weight: bold;">false</span><span style="color: #339933;">;</span>
	<span style="color: #009900;">&#125;</span>	
	<span style="color: #000088;">$pic_border_top</span> <span style="color: #339933;">=</span> <span style="color: #cc66cc;">5</span><span style="color: #339933;">;</span>
	<span style="color: #000088;">$pic_border_bottom</span> <span style="color: #339933;">=</span> <span style="color: #cc66cc;">5</span><span style="color: #339933;">;</span>
&nbsp;
	<span style="color: #666666; font-style: italic;">// getting the keys from array</span>
	<span style="color: #000088;">$keys</span> <span style="color: #339933;">=</span> <span style="color: #990000;">array_keys</span><span style="color: #009900;">&#40;</span><span style="color: #000088;">$data</span><span style="color: #009900;">&#41;</span><span style="color: #339933;">;</span>
&nbsp;
&nbsp;
	<span style="color: #666666; font-style: italic;">// the keys should be displayed, so add a stripe for displaying the keys</span>
	<span style="color: #666666; font-style: italic;">// find the longest key. the length of string *6pixel per letter are added to the border bottom</span>
	<span style="color: #b1b100;">if</span><span style="color: #009900;">&#40;</span><span style="color: #000088;">$show_keys</span><span style="color: #009900;">&#41;</span><span style="color: #009900;">&#123;</span>
		<span style="color: #000088;">$max</span> <span style="color: #339933;">=</span> <span style="color: #cc66cc;">0</span><span style="color: #339933;">;</span>
		<span style="color: #b1b100;">for</span><span style="color: #009900;">&#40;</span><span style="color: #000088;">$i</span><span style="color: #339933;">=</span><span style="color: #cc66cc;">0</span><span style="color: #339933;">;</span><span style="color: #000088;">$i</span><span style="color: #339933;">&lt;</span>count<span style="color: #009900;">&#40;</span><span style="color: #000088;">$keys</span><span style="color: #009900;">&#41;</span><span style="color: #339933;">;</span><span style="color: #000088;">$i</span><span style="color: #339933;">++</span><span style="color: #009900;">&#41;</span><span style="color: #009900;">&#123;</span>
			<span style="color: #b1b100;">if</span><span style="color: #009900;">&#40;</span><span style="color: #000088;">$max</span><span style="color: #339933;">&lt;</span>strlen<span style="color: #009900;">&#40;</span><span style="color: #000088;">$keys</span><span style="color: #009900;">&#91;</span><span style="color: #000088;">$i</span><span style="color: #009900;">&#93;</span><span style="color: #009900;">&#41;</span><span style="color: #009900;">&#41;</span>
				<span style="color: #000088;">$max</span> <span style="color: #339933;">=</span> <span style="color: #990000;">strlen</span><span style="color: #009900;">&#40;</span><span style="color: #000088;">$keys</span><span style="color: #009900;">&#91;</span><span style="color: #000088;">$i</span><span style="color: #009900;">&#93;</span><span style="color: #009900;">&#41;</span><span style="color: #339933;">;</span>
		<span style="color: #009900;">&#125;</span>
		<span style="color: #000088;">$pic_border_bottom</span> <span style="color: #339933;">=</span> <span style="color: #000088;">$max</span> <span style="color: #339933;">*</span><span style="color: #cc66cc;">6</span><span style="color: #339933;">+</span><span style="color: #cc66cc;">12</span><span style="color: #339933;">;</span>
	<span style="color: #009900;">&#125;</span>
&nbsp;
	<span style="color: #666666; font-style: italic;">// the number should be displayed at the top of the diagramm</span>
	<span style="color: #b1b100;">if</span><span style="color: #009900;">&#40;</span><span style="color: #000088;">$show_number</span><span style="color: #009900;">&#41;</span><span style="color: #009900;">&#123;</span>
		<span style="color: #000088;">$max_num</span> <span style="color: #339933;">=</span> <span style="color: #cc66cc;">0</span><span style="color: #339933;">;</span>
		<span style="color: #b1b100;">for</span><span style="color: #009900;">&#40;</span><span style="color: #000088;">$i</span><span style="color: #339933;">=</span><span style="color: #cc66cc;">0</span><span style="color: #339933;">;</span><span style="color: #000088;">$i</span><span style="color: #339933;">&lt;</span>count<span style="color: #009900;">&#40;</span><span style="color: #000088;">$keys</span><span style="color: #009900;">&#41;</span><span style="color: #339933;">;</span><span style="color: #000088;">$i</span><span style="color: #339933;">++</span><span style="color: #009900;">&#41;</span><span style="color: #009900;">&#123;</span>
			<span style="color: #b1b100;">if</span><span style="color: #009900;">&#40;</span><span style="color: #000088;">$max_num</span><span style="color: #339933;">&lt;</span>strlen<span style="color: #009900;">&#40;</span><span style="color: #000088;">$data</span><span style="color: #009900;">&#91;</span><span style="color: #000088;">$keys</span><span style="color: #009900;">&#91;</span><span style="color: #000088;">$i</span><span style="color: #009900;">&#93;</span><span style="color: #009900;">&#93;</span><span style="color: #009900;">&#41;</span><span style="color: #009900;">&#41;</span>
				<span style="color: #000088;">$max_num</span> <span style="color: #339933;">=</span> <span style="color: #990000;">strlen</span><span style="color: #009900;">&#40;</span><span style="color: #000088;">$data</span><span style="color: #009900;">&#91;</span><span style="color: #000088;">$keys</span><span style="color: #009900;">&#91;</span><span style="color: #000088;">$i</span><span style="color: #009900;">&#93;</span><span style="color: #009900;">&#93;</span><span style="color: #009900;">&#41;</span><span style="color: #339933;">;</span>
		<span style="color: #009900;">&#125;</span>
		<span style="color: #b1b100;">if</span><span style="color: #009900;">&#40;</span><span style="color: #009900;">&#40;</span><span style="color: #000088;">$max_num</span><span style="color: #339933;">*</span><span style="color: #cc66cc;">7</span><span style="color: #009900;">&#41;</span><span style="color: #339933;">+</span><span style="color: #cc66cc;">3</span><span style="color: #339933;">&gt;</span><span style="color: #000088;">$pic_border_top</span><span style="color: #009900;">&#41;</span><span style="color: #009900;">&#123;</span>
			<span style="color: #000088;">$pic_border_top</span> <span style="color: #339933;">+=</span> <span style="color: #000088;">$max_num</span><span style="color: #339933;">*</span><span style="color: #cc66cc;">8</span><span style="color: #339933;">;</span>
		<span style="color: #009900;">&#125;</span>
	<span style="color: #009900;">&#125;</span>
	<span style="color: #b1b100;">if</span><span style="color: #009900;">&#40;</span><span style="color: #000088;">$show_precent</span><span style="color: #009900;">&#41;</span><span style="color: #009900;">&#123;</span>
		<span style="color: #000088;">$pic_border_top</span> <span style="color: #339933;">+=</span> <span style="color: #cc66cc;">32</span><span style="color: #339933;">;</span>
	<span style="color: #009900;">&#125;</span>
&nbsp;
	<span style="color: #666666; font-style: italic;">//Convert the values to percent values</span>
	<span style="color: #000088;">$hundredp</span> <span style="color: #339933;">=</span> <span style="color: #990000;">max</span><span style="color: #009900;">&#40;</span><span style="color: #000088;">$data</span><span style="color: #009900;">&#41;</span><span style="color: #339933;">;</span>
	<span style="color: #000088;">$newarray</span> <span style="color: #339933;">=</span> <span style="color: #990000;">array</span><span style="color: #009900;">&#40;</span><span style="color: #009900;">&#41;</span><span style="color: #339933;">;</span>
	<span style="color: #b1b100;">foreach</span> <span style="color: #009900;">&#40;</span><span style="color: #000088;">$data</span> <span style="color: #b1b100;">as</span> <span style="color: #000088;">$el</span><span style="color: #009900;">&#41;</span> <span style="color: #009900;">&#123;</span>
		<span style="color: #000088;">$newarray</span><span style="color: #009900;">&#91;</span><span style="color: #009900;">&#93;</span> <span style="color: #339933;">=</span> <span style="color: #990000;">intval</span><span style="color: #009900;">&#40;</span><span style="color: #000088;">$el</span> <span style="color: #339933;">/</span> <span style="color: #000088;">$hundredp</span> <span style="color: #339933;">*</span> <span style="color: #cc66cc;">100</span><span style="color: #009900;">&#41;</span><span style="color: #339933;">;</span>
	<span style="color: #009900;">&#125;</span>
&nbsp;
	<span style="color: #666666; font-style: italic;">// let's start with the image-creation</span>
	<span style="color: #000088;">$im</span> <span style="color: #339933;">=</span> <span style="color: #990000;">imagecreatetruecolor</span><span style="color: #009900;">&#40;</span><span style="color: #000088;">$w</span><span style="color: #339933;">,</span> <span style="color: #000088;">$h</span><span style="color: #009900;">&#41;</span><span style="color: #339933;">;</span>
	<span style="color: #666666; font-style: italic;">//define colors.</span>
	<span style="color: #000088;">$col_background</span> <span style="color: #339933;">=</span> <span style="color: #990000;">imagecolorallocate</span><span style="color: #009900;">&#40;</span><span style="color: #000088;">$im</span><span style="color: #339933;">,</span> <span style="color: #cc66cc;">0</span><span style="color: #339933;">,</span> <span style="color: #cc66cc;">0</span><span style="color: #339933;">,</span> <span style="color: #cc66cc;">0</span><span style="color: #009900;">&#41;</span><span style="color: #339933;">;</span>
	<span style="color: #000088;">$col_grid</span> <span style="color: #339933;">=</span> <span style="color: #990000;">imagecolorallocate</span><span style="color: #009900;">&#40;</span><span style="color: #000088;">$im</span><span style="color: #339933;">,</span> <span style="color: #208080;">0x53</span><span style="color: #339933;">,</span> <span style="color: #208080;">0x44</span><span style="color: #339933;">,</span> <span style="color: #208080;">0x01</span><span style="color: #009900;">&#41;</span><span style="color: #339933;">;</span>
	<span style="color: #000088;">$col_bars</span> <span style="color: #339933;">=</span> <span style="color: #990000;">imagecolorallocate</span><span style="color: #009900;">&#40;</span><span style="color: #000088;">$im</span><span style="color: #339933;">,</span> <span style="color: #208080;">0xb7</span><span style="color: #339933;">,</span> <span style="color: #208080;">0x6b</span><span style="color: #339933;">,</span> <span style="color: #208080;">0x1a</span><span style="color: #009900;">&#41;</span><span style="color: #339933;">;</span>
	<span style="color: #000088;">$col_text</span> <span style="color: #339933;">=</span> <span style="color: #990000;">imagecolorallocate</span><span style="color: #009900;">&#40;</span><span style="color: #000088;">$im</span><span style="color: #339933;">,</span> <span style="color: #cc66cc;">200</span><span style="color: #339933;">,</span> <span style="color: #cc66cc;">200</span><span style="color: #339933;">,</span> <span style="color: #cc66cc;">200</span><span style="color: #009900;">&#41;</span><span style="color: #339933;">;</span>
&nbsp;
	<span style="color: #666666; font-style: italic;">//fill with background color</span>
		<span style="color: #990000;">imagefill</span><span style="color: #009900;">&#40;</span><span style="color: #000088;">$im</span><span style="color: #339933;">,</span> <span style="color: #cc66cc;">0</span><span style="color: #339933;">,</span> <span style="color: #cc66cc;">0</span><span style="color: #339933;">,</span> <span style="color: #000088;">$col_background</span><span style="color: #009900;">&#41;</span><span style="color: #339933;">;</span>
&nbsp;
	<span style="color: #666666; font-style: italic;">// drawing the grid</span>
	<span style="color: #666666; font-style: italic;">//horizontal lines</span>
		<span style="color: #b1b100;">for</span> <span style="color: #009900;">&#40;</span><span style="color: #000088;">$i</span><span style="color: #339933;">=</span><span style="color: #cc66cc;">1</span><span style="color: #339933;">;</span> <span style="color: #000088;">$i</span><span style="color: #339933;">&lt;=</span><span style="color: #cc66cc;">10</span><span style="color: #339933;">;</span> <span style="color: #000088;">$i</span><span style="color: #339933;">++</span><span style="color: #009900;">&#41;</span>	<span style="color: #009900;">&#123;</span>
			<span style="color: #990000;">imageline</span><span style="color: #009900;">&#40;</span><span style="color: #000088;">$im</span><span style="color: #339933;">,</span>
				<span style="color: #cc66cc;">0</span><span style="color: #339933;">,</span>
				<span style="color: #000088;">$i</span><span style="color: #339933;">*</span><span style="color: #009900;">&#40;</span><span style="color: #009900;">&#40;</span><span style="color: #000088;">$h</span><span style="color: #339933;">-</span><span style="color: #000088;">$pic_border_bottom</span><span style="color: #339933;">-</span><span style="color: #000088;">$pic_border_top</span><span style="color: #009900;">&#41;</span><span style="color: #339933;">/</span><span style="color: #cc66cc;">10</span><span style="color: #009900;">&#41;</span><span style="color: #339933;">+</span><span style="color: #000088;">$pic_border_top</span><span style="color: #339933;">,</span>
				<span style="color: #000088;">$w</span><span style="color: #339933;">,</span>
				<span style="color: #000088;">$i</span><span style="color: #339933;">*</span><span style="color: #009900;">&#40;</span><span style="color: #009900;">&#40;</span><span style="color: #000088;">$h</span><span style="color: #339933;">-</span><span style="color: #000088;">$pic_border_bottom</span><span style="color: #339933;">-</span><span style="color: #000088;">$pic_border_top</span><span style="color: #009900;">&#41;</span><span style="color: #339933;">/</span><span style="color: #cc66cc;">10</span><span style="color: #009900;">&#41;</span><span style="color: #339933;">+</span><span style="color: #000088;">$pic_border_top</span><span style="color: #339933;">,</span>
				<span style="color: #000088;">$col_grid</span><span style="color: #009900;">&#41;</span><span style="color: #339933;">;</span>
		<span style="color: #009900;">&#125;</span>
	<span style="color: #666666; font-style: italic;">//vertical</span>
		<span style="color: #000088;">$space</span> <span style="color: #339933;">=</span> <span style="color: #990000;">intval</span><span style="color: #009900;">&#40;</span><span style="color: #000088;">$w</span> <span style="color: #339933;">/</span> <span style="color: #990000;">count</span><span style="color: #009900;">&#40;</span><span style="color: #000088;">$newarray</span><span style="color: #009900;">&#41;</span><span style="color: #009900;">&#41;</span><span style="color: #339933;">;</span>
		<span style="color: #b1b100;">for</span> <span style="color: #009900;">&#40;</span><span style="color: #000088;">$i</span><span style="color: #339933;">=</span><span style="color: #cc66cc;">1</span><span style="color: #339933;">;</span> <span style="color: #000088;">$i</span><span style="color: #339933;">&lt;=</span><span style="color: #990000;">count</span><span style="color: #009900;">&#40;</span><span style="color: #000088;">$newarray</span><span style="color: #009900;">&#41;</span><span style="color: #339933;">;</span> <span style="color: #000088;">$i</span><span style="color: #339933;">++</span><span style="color: #009900;">&#41;</span>		<span style="color: #009900;">&#123;</span>
			<span style="color: #990000;">imageline</span><span style="color: #009900;">&#40;</span><span style="color: #000088;">$im</span><span style="color: #339933;">,</span>
				<span style="color: #000088;">$i</span><span style="color: #339933;">*</span><span style="color: #000088;">$space</span><span style="color: #339933;">,</span>
				<span style="color: #000088;">$pic_border_top</span><span style="color: #339933;">,</span>
				<span style="color: #000088;">$i</span><span style="color: #339933;">*</span><span style="color: #000088;">$space</span><span style="color: #339933;">,</span>
				<span style="color: #000088;">$h</span><span style="color: #339933;">-</span><span style="color: #000088;">$pic_border_bottom</span><span style="color: #339933;">,</span>
				<span style="color: #000088;">$col_grid</span><span style="color: #009900;">&#41;</span><span style="color: #339933;">;</span>
		<span style="color: #009900;">&#125;</span>
&nbsp;
		<span style="color: #666666; font-style: italic;">// start drawing the datas</span>
	<span style="color: #b1b100;">for</span> <span style="color: #009900;">&#40;</span><span style="color: #000088;">$i</span><span style="color: #339933;">=</span><span style="color: #cc66cc;">0</span><span style="color: #339933;">;</span> <span style="color: #000088;">$i</span><span style="color: #339933;">&lt;</span>count<span style="color: #009900;">&#40;</span><span style="color: #000088;">$newarray</span><span style="color: #009900;">&#41;</span><span style="color: #339933;">;</span><span style="color: #000088;">$i</span><span style="color: #339933;">++</span><span style="color: #009900;">&#41;</span><span style="color: #009900;">&#123;</span>
		<span style="color: #000088;">$x1</span> <span style="color: #339933;">=</span> <span style="color: #990000;">intval</span><span style="color: #009900;">&#40;</span><span style="color: #000088;">$space</span><span style="color: #339933;">/</span><span style="color: #cc66cc;">2</span><span style="color: #009900;">&#41;</span> <span style="color: #339933;">-</span><span style="color: #cc66cc;">1</span> <span style="color: #339933;">+</span> <span style="color: #000088;">$space</span><span style="color: #339933;">*</span><span style="color: #000088;">$i</span><span style="color: #339933;">;</span>
		<span style="color: #000088;">$y_bottom</span> <span style="color: #339933;">=</span> <span style="color: #000088;">$h</span><span style="color: #339933;">-</span><span style="color: #000088;">$pic_border_bottom</span><span style="color: #339933;">;</span>
		<span style="color: #000088;">$y_top</span> <span style="color: #339933;">=</span> <span style="color: #009900;">&#40;</span><span style="color: #000088;">$h</span><span style="color: #339933;">-</span><span style="color: #000088;">$pic_border_bottom</span><span style="color: #009900;">&#41;</span><span style="color: #339933;">-</span><span style="color: #009900;">&#40;</span><span style="color: #009900;">&#40;</span><span style="color: #000088;">$newarray</span><span style="color: #009900;">&#91;</span><span style="color: #000088;">$i</span><span style="color: #009900;">&#93;</span><span style="color: #009900;">&#41;</span><span style="color: #339933;">*</span><span style="color: #009900;">&#40;</span><span style="color: #009900;">&#40;</span><span style="color: #009900;">&#40;</span><span style="color: #000088;">$h</span><span style="color: #339933;">-</span><span style="color: #000088;">$pic_border_bottom</span><span style="color: #009900;">&#41;</span><span style="color: #339933;">-</span><span style="color: #000088;">$pic_border_top</span><span style="color: #009900;">&#41;</span><span style="color: #339933;">/</span><span style="color: #cc66cc;">100</span><span style="color: #009900;">&#41;</span><span style="color: #009900;">&#41;</span><span style="color: #339933;">;</span>
&nbsp;
		<span style="color: #990000;">imagefilledrectangle</span><span style="color: #009900;">&#40;</span><span style="color: #000088;">$im</span><span style="color: #339933;">,</span> <span style="color: #000088;">$x1</span><span style="color: #339933;">,</span> <span style="color: #000088;">$y_bottom</span><span style="color: #339933;">,</span> <span style="color: #000088;">$x1</span><span style="color: #339933;">+</span><span style="color: #cc66cc;">3</span><span style="color: #339933;">,</span> <span style="color: #000088;">$y_top</span><span style="color: #339933;">,</span> <span style="color: #000088;">$col_bars</span><span style="color: #009900;">&#41;</span><span style="color: #339933;">;</span>
&nbsp;
		<span style="color: #b1b100;">if</span><span style="color: #009900;">&#40;</span><span style="color: #000088;">$show_number</span> <span style="color: #339933;">&amp;&amp;</span> <span style="color: #339933;">!</span><span style="color: #000088;">$show_precent</span><span style="color: #009900;">&#41;</span><span style="color: #009900;">&#123;</span>
			<span style="color: #000088;">$number</span> <span style="color: #339933;">=</span> <span style="color: #000088;">$data</span><span style="color: #009900;">&#91;</span><span style="color: #000088;">$keys</span><span style="color: #009900;">&#91;</span><span style="color: #000088;">$i</span><span style="color: #009900;">&#93;</span><span style="color: #009900;">&#93;</span><span style="color: #339933;">;</span>
			<span style="color: #990000;">imagestringup</span><span style="color: #009900;">&#40;</span><span style="color: #000088;">$im</span><span style="color: #339933;">,</span> <span style="color: #cc66cc;">2</span><span style="color: #339933;">,</span> <span style="color: #000088;">$x1</span><span style="color: #339933;">-</span><span style="color: #cc66cc;">5</span><span style="color: #339933;">,</span> <span style="color: #000088;">$y_top</span><span style="color: #339933;">-</span><span style="color: #cc66cc;">10</span><span style="color: #339933;">,</span><span style="color: #000088;">$number</span><span style="color: #339933;">,</span><span style="color: #000088;">$col_text</span><span style="color: #009900;">&#41;</span><span style="color: #339933;">;</span>
		<span style="color: #009900;">&#125;</span>
&nbsp;
		<span style="color: #b1b100;">if</span><span style="color: #009900;">&#40;</span><span style="color: #000088;">$show_precent</span> <span style="color: #339933;">&amp;&amp;</span> <span style="color: #339933;">!</span><span style="color: #000088;">$show_number</span><span style="color: #009900;">&#41;</span>
			<span style="color: #990000;">imagestringup</span><span style="color: #009900;">&#40;</span><span style="color: #000088;">$im</span><span style="color: #339933;">,</span> <span style="color: #cc66cc;">2</span><span style="color: #339933;">,</span> <span style="color: #000088;">$x1</span><span style="color: #339933;">-</span><span style="color: #cc66cc;">5</span><span style="color: #339933;">,</span> <span style="color: #000088;">$y_top</span><span style="color: #339933;">-</span><span style="color: #cc66cc;">10</span><span style="color: #339933;">,</span> <span style="color: #000088;">$newarray</span><span style="color: #009900;">&#91;</span><span style="color: #000088;">$i</span><span style="color: #009900;">&#93;</span><span style="color: #339933;">.</span><span style="color: #0000ff;">'%'</span><span style="color: #339933;">,</span><span style="color: #000088;">$col_text</span><span style="color: #009900;">&#41;</span><span style="color: #339933;">;</span>
&nbsp;
		<span style="color: #b1b100;">if</span><span style="color: #009900;">&#40;</span><span style="color: #000088;">$show_keys</span><span style="color: #009900;">&#41;</span>
			<span style="color: #990000;">imagestringup</span><span style="color: #009900;">&#40;</span><span style="color: #000088;">$im</span><span style="color: #339933;">,</span> <span style="color: #cc66cc;">2</span><span style="color: #339933;">,</span> <span style="color: #000088;">$x1</span><span style="color: #339933;">-</span><span style="color: #cc66cc;">5</span><span style="color: #339933;">,</span> <span style="color: #000088;">$h</span><span style="color: #339933;">-</span><span style="color: #cc66cc;">10</span><span style="color: #339933;">-</span><span style="color: #009900;">&#40;</span><span style="color: #009900;">&#40;</span><span style="color: #000088;">$max</span><span style="color: #339933;">-</span><span style="color: #990000;">strlen</span><span style="color: #009900;">&#40;</span><span style="color: #000088;">$keys</span><span style="color: #009900;">&#91;</span><span style="color: #000088;">$i</span><span style="color: #009900;">&#93;</span><span style="color: #009900;">&#41;</span><span style="color: #009900;">&#41;</span><span style="color: #339933;">*</span><span style="color: #cc66cc;">6</span><span style="color: #009900;">&#41;</span><span style="color: #339933;">,</span> <span style="color: #000088;">$keys</span><span style="color: #009900;">&#91;</span><span style="color: #000088;">$i</span><span style="color: #009900;">&#93;</span><span style="color: #339933;">,</span><span style="color: #000088;">$col_text</span><span style="color: #009900;">&#41;</span><span style="color: #339933;">;</span>
	<span style="color: #009900;">&#125;</span>
	<span style="color: #666666; font-style: italic;">//tell the browser that this will be a png image.</span>
	<span style="color: #990000;">header</span><span style="color: #009900;">&#40;</span><span style="color: #0000ff;">&quot;Content-type: image/png&quot;</span><span style="color: #009900;">&#41;</span><span style="color: #339933;">;</span>
&nbsp;
	<span style="color: #666666; font-style: italic;">//finally generate the image;</span>
	<span style="color: #990000;">imagepng</span><span style="color: #009900;">&#40;</span><span style="color: #000088;">$im</span><span style="color: #009900;">&#41;</span><span style="color: #339933;">;</span>
	<span style="color: #990000;">imagedestroy</span><span style="color: #009900;">&#40;</span><span style="color: #000088;">$im</span><span style="color: #009900;">&#41;</span><span style="color: #339933;">;</span>
<span style="color: #009900;">&#125;</span>
&nbsp;
<span style="color: #b1b100;">if</span><span style="color: #009900;">&#40;</span><span style="color: #339933;">!</span><span style="color: #990000;">isset</span><span style="color: #009900;">&#40;</span><span style="color: #000088;">$_GET</span><span style="color: #009900;">&#91;</span><span style="color: #0000ff;">'data'</span><span style="color: #009900;">&#93;</span><span style="color: #009900;">&#41;</span><span style="color: #009900;">&#41;</span><span style="color: #009900;">&#123;</span>
	<span style="color: #990000;">die</span><span style="color: #009900;">&#40;</span><span style="color: #009900;">&#41;</span><span style="color: #339933;">;</span>
<span style="color: #009900;">&#125;</span>
<span style="color: #b1b100;">else</span><span style="color: #009900;">&#123;</span>
	<span style="color: #000088;">$data</span> <span style="color: #339933;">=</span> <span style="color: #990000;">unserialize</span><span style="color: #009900;">&#40;</span><span style="color: #990000;">stripslashes</span><span style="color: #009900;">&#40;</span><span style="color: #000088;">$_GET</span><span style="color: #009900;">&#91;</span><span style="color: #0000ff;">'data'</span><span style="color: #009900;">&#93;</span><span style="color: #009900;">&#41;</span><span style="color: #009900;">&#41;</span><span style="color: #339933;">;</span>
	<span style="color: #000088;">$cont</span> <span style="color: #339933;">=</span> <span style="color: #000088;">$data</span><span style="color: #009900;">&#91;</span><span style="color: #0000ff;">'data'</span><span style="color: #009900;">&#93;</span><span style="color: #339933;">;</span>
&nbsp;
	<span style="color: #b1b100;">if</span><span style="color: #009900;">&#40;</span><span style="color: #990000;">isset</span><span style="color: #009900;">&#40;</span><span style="color: #000088;">$data</span><span style="color: #009900;">&#91;</span><span style="color: #0000ff;">'h'</span><span style="color: #009900;">&#93;</span><span style="color: #009900;">&#41;</span><span style="color: #009900;">&#41;</span>
		<span style="color: #000088;">$h</span> <span style="color: #339933;">=</span> <span style="color: #000088;">$data</span><span style="color: #009900;">&#91;</span><span style="color: #0000ff;">'h'</span><span style="color: #009900;">&#93;</span><span style="color: #339933;">;</span>
	<span style="color: #b1b100;">if</span><span style="color: #009900;">&#40;</span><span style="color: #990000;">isset</span><span style="color: #009900;">&#40;</span><span style="color: #000088;">$data</span><span style="color: #009900;">&#91;</span><span style="color: #0000ff;">'b'</span><span style="color: #009900;">&#93;</span><span style="color: #009900;">&#41;</span><span style="color: #009900;">&#41;</span>
		<span style="color: #000088;">$b</span> <span style="color: #339933;">=</span> <span style="color: #000088;">$data</span><span style="color: #009900;">&#91;</span><span style="color: #0000ff;">'b'</span><span style="color: #009900;">&#93;</span><span style="color: #339933;">;</span>
	<span style="color: #b1b100;">if</span><span style="color: #009900;">&#40;</span><span style="color: #990000;">isset</span><span style="color: #009900;">&#40;</span><span style="color: #000088;">$data</span><span style="color: #009900;">&#91;</span><span style="color: #0000ff;">'keys'</span><span style="color: #009900;">&#93;</span><span style="color: #009900;">&#41;</span><span style="color: #009900;">&#41;</span>
		<span style="color: #000088;">$keys</span> <span style="color: #339933;">=</span> <span style="color: #000088;">$data</span><span style="color: #009900;">&#91;</span><span style="color: #0000ff;">'keys'</span><span style="color: #009900;">&#93;</span><span style="color: #339933;">;</span>
	<span style="color: #b1b100;">if</span><span style="color: #009900;">&#40;</span><span style="color: #990000;">isset</span><span style="color: #009900;">&#40;</span><span style="color: #000088;">$data</span><span style="color: #009900;">&#91;</span><span style="color: #0000ff;">'label'</span><span style="color: #009900;">&#93;</span><span style="color: #009900;">&#41;</span><span style="color: #009900;">&#41;</span>
		<span style="color: #000088;">$label</span> <span style="color: #339933;">=</span> <span style="color: #000088;">$data</span><span style="color: #009900;">&#91;</span><span style="color: #0000ff;">'label'</span><span style="color: #009900;">&#93;</span><span style="color: #339933;">;</span>
<span style="color: #009900;">&#125;</span>
arraytograph<span style="color: #009900;">&#40;</span><span style="color: #000088;">$cont</span><span style="color: #339933;">,</span><span style="color: #000088;">$b</span><span style="color: #339933;">,</span><span style="color: #000088;">$h</span><span style="color: #339933;">,</span><span style="color: #000088;">$keys</span><span style="color: #339933;">,</span><span style="color: #000088;">$label</span><span style="color: #009900;">&#41;</span><span style="color: #339933;">;</span>
<span style="color: #000000; font-weight: bold;">?&gt;</span></pre></td></tr></table></div>

<p>Nun sollte es möglich sein in einer neuen Datei, in der man das Diagramm anzeigen möchte unsere Diagrammdatei als Bildquelle einzubinden. Als zusätzliche Parameter an das Bild übergeben wir die oben genannten 3 Parameter (Daten, Höhe, Breite)</p>

<div class="wp_syntax"><div class="code"><pre class="php" style="font-family:monospace;"><span style="color: #000000; font-weight: bold;">&lt;?php</span>
<span style="color: #000088;">$datas</span><span style="color: #009900;">&#91;</span><span style="color: #0000ff;">'data'</span><span style="color: #009900;">&#93;</span> <span style="color: #339933;">=</span> <span style="color: #990000;">array</span><span style="color: #009900;">&#40;</span><span style="color: #0000ff;">&quot;Stein&quot;</span><span style="color: #339933;">=&gt;</span><span style="color: #cc66cc;">64</span><span style="color: #339933;">,</span><span style="color: #0000ff;">&quot;Lehm&quot;</span><span style="color: #339933;">=&gt;</span><span style="color: #cc66cc;">128</span><span style="color: #339933;">,</span><span style="color: #0000ff;">&quot;Holz&quot;</span><span style="color: #339933;">=&gt;</span><span style="color: #cc66cc;">256</span><span style="color: #339933;">,</span><span style="color: #0000ff;">&quot;Nahrung&quot;</span><span style="color: #339933;">=&gt;</span><span style="color: #cc66cc;">512</span><span style="color: #339933;">,</span><span style="color: #0000ff;">&quot;Menschen&quot;</span><span style="color: #339933;">=&gt;</span><span style="color: #cc66cc;">1024</span><span style="color: #009900;">&#41;</span><span style="color: #339933;">;</span>
<span style="color: #000088;">$datas</span><span style="color: #009900;">&#91;</span><span style="color: #0000ff;">'h'</span><span style="color: #009900;">&#93;</span> <span style="color: #339933;">=</span> <span style="color: #cc66cc;">200</span><span style="color: #339933;">;</span>
<span style="color: #000088;">$datas</span><span style="color: #009900;">&#91;</span><span style="color: #0000ff;">'b'</span><span style="color: #009900;">&#93;</span> <span style="color: #339933;">=</span> <span style="color: #cc66cc;">150</span><span style="color: #339933;">;</span>
<span style="color: #000088;">$datas</span><span style="color: #009900;">&#91;</span><span style="color: #0000ff;">'keys'</span><span style="color: #009900;">&#93;</span> <span style="color: #339933;">=</span> <span style="color: #009900; font-weight: bold;">true</span><span style="color: #339933;">;</span>
<span style="color: #000088;">$datas</span><span style="color: #009900;">&#91;</span><span style="color: #0000ff;">'label'</span><span style="color: #009900;">&#93;</span> <span style="color: #339933;">=</span> <span style="color: #0000ff;">'value'</span><span style="color: #339933;">;</span>
<span style="color: #b1b100;">echo</span> <span style="color: #0000ff;">&quot;&lt;img src='arraytograph.php?data='.urlencode(serialize (<span style="color: #006699; font-weight: bold;">$datas</span>)).'&quot;</span> alt<span style="color: #339933;">=</span><span style="color: #0000ff;">&quot;&quot;</span> <span style="color: #339933;">/&gt;</span> <span style="color: #0000ff;">';
?&gt;</span></pre></div></div>

<p><img class="aligncenter size-full wp-image-57" title="arraytograph_1" src="http://blog.snaky.org/wp-content/uploads/2008/07/arraytograph_1.png" alt="" width="150" height="200" /><br />
Nun sehen wir in unserer Datei ein schönes Diagramm <img src='http://blog.snaky.org/wp-includes/images/smilies/icon_smile.gif' alt=':-)' class='wp-smiley' /> </p>
<p>Leicht lassen sich auch andere Möglichkeiten generieren</p>

<div class="wp_syntax"><div class="code"><pre class="php" style="font-family:monospace;"><span style="color: #000000; font-weight: bold;">&lt;?php</span>
<span style="color: #000088;">$datas</span><span style="color: #009900;">&#91;</span><span style="color: #0000ff;">'data'</span><span style="color: #009900;">&#93;</span> <span style="color: #339933;">=</span> <span style="color: #990000;">array</span><span style="color: #009900;">&#40;</span><span style="color: #0000ff;">&quot;Stein&quot;</span><span style="color: #339933;">=&gt;</span><span style="color: #cc66cc;">64</span><span style="color: #339933;">,</span><span style="color: #0000ff;">&quot;Lehm&quot;</span><span style="color: #339933;">=&gt;</span><span style="color: #cc66cc;">128</span><span style="color: #339933;">,</span><span style="color: #0000ff;">&quot;Holz&quot;</span><span style="color: #339933;">=&gt;</span><span style="color: #cc66cc;">256</span><span style="color: #339933;">,</span><span style="color: #0000ff;">&quot;Nahrung&quot;</span><span style="color: #339933;">=&gt;</span><span style="color: #cc66cc;">512</span><span style="color: #339933;">,</span><span style="color: #0000ff;">&quot;Menschen&quot;</span><span style="color: #339933;">=&gt;</span><span style="color: #cc66cc;">1024</span><span style="color: #009900;">&#41;</span><span style="color: #339933;">;</span>
<span style="color: #000088;">$datas</span><span style="color: #009900;">&#91;</span><span style="color: #0000ff;">'h'</span><span style="color: #009900;">&#93;</span> <span style="color: #339933;">=</span> <span style="color: #cc66cc;">200</span><span style="color: #339933;">;</span>
<span style="color: #000088;">$datas</span><span style="color: #009900;">&#91;</span><span style="color: #0000ff;">'b'</span><span style="color: #009900;">&#93;</span> <span style="color: #339933;">=</span> <span style="color: #cc66cc;">150</span><span style="color: #339933;">;</span>
<span style="color: #000088;">$datas</span><span style="color: #009900;">&#91;</span><span style="color: #0000ff;">'keys'</span><span style="color: #009900;">&#93;</span> <span style="color: #339933;">=</span> <span style="color: #009900; font-weight: bold;">true</span><span style="color: #339933;">;</span>
<span style="color: #000088;">$datas</span><span style="color: #009900;">&#91;</span><span style="color: #0000ff;">'label'</span><span style="color: #009900;">&#93;</span> <span style="color: #339933;">=</span> <span style="color: #0000ff;">'percent'</span><span style="color: #339933;">;</span>
<span style="color: #b1b100;">echo</span> <span style="color: #0000ff;">&quot;&lt;img src='arraytograph.php?data='.urlencode(serialize (<span style="color: #006699; font-weight: bold;">$datas</span>)).'&quot;</span> alt<span style="color: #339933;">=</span><span style="color: #0000ff;">&quot;&quot;</span> <span style="color: #339933;">/&gt;</span> <span style="color: #0000ff;">';
?&gt;</span></pre></div></div>

<p><img src="http://blog.snaky.org/wp-content/uploads/2008/07/arraytograph_2.png" alt="" title="arraytograph_2" width="150" height="200" class="aligncenter size-full wp-image-58" /></p>
<p>oder auch</p>

<div class="wp_syntax"><div class="code"><pre class="php" style="font-family:monospace;"><span style="color: #000000; font-weight: bold;">&lt;?php</span>
<span style="color: #000088;">$datas</span><span style="color: #009900;">&#91;</span><span style="color: #0000ff;">'data'</span><span style="color: #009900;">&#93;</span> <span style="color: #339933;">=</span> <span style="color: #990000;">array</span><span style="color: #009900;">&#40;</span><span style="color: #0000ff;">&quot;Stein&quot;</span><span style="color: #339933;">=&gt;</span><span style="color: #cc66cc;">64</span><span style="color: #339933;">,</span><span style="color: #0000ff;">&quot;Lehm&quot;</span><span style="color: #339933;">=&gt;</span><span style="color: #cc66cc;">128</span><span style="color: #339933;">,</span><span style="color: #0000ff;">&quot;Holz&quot;</span><span style="color: #339933;">=&gt;</span><span style="color: #cc66cc;">256</span><span style="color: #339933;">,</span><span style="color: #0000ff;">&quot;Nahrung&quot;</span><span style="color: #339933;">=&gt;</span><span style="color: #cc66cc;">512</span><span style="color: #339933;">,</span><span style="color: #0000ff;">&quot;Menschen&quot;</span><span style="color: #339933;">=&gt;</span><span style="color: #cc66cc;">1024</span><span style="color: #009900;">&#41;</span><span style="color: #339933;">;</span>
<span style="color: #000088;">$datas</span><span style="color: #009900;">&#91;</span><span style="color: #0000ff;">'h'</span><span style="color: #009900;">&#93;</span> <span style="color: #339933;">=</span> <span style="color: #cc66cc;">150</span><span style="color: #339933;">;</span>
<span style="color: #000088;">$datas</span><span style="color: #009900;">&#91;</span><span style="color: #0000ff;">'b'</span><span style="color: #009900;">&#93;</span> <span style="color: #339933;">=</span> <span style="color: #cc66cc;">150</span><span style="color: #339933;">;</span>
<span style="color: #000088;">$datas</span><span style="color: #009900;">&#91;</span><span style="color: #0000ff;">'keys'</span><span style="color: #009900;">&#93;</span> <span style="color: #339933;">=</span> <span style="color: #009900; font-weight: bold;">true</span><span style="color: #339933;">;</span>
<span style="color: #000088;">$datas</span><span style="color: #009900;">&#91;</span><span style="color: #0000ff;">'label'</span><span style="color: #009900;">&#93;</span> <span style="color: #339933;">=</span> <span style="color: #0000ff;">'value'</span><span style="color: #339933;">;</span>
<span style="color: #b1b100;">echo</span> <span style="color: #0000ff;">&quot;&lt;img src='arraytograph.php?data=&quot;</span><span style="color: #339933;">.</span><span style="color: #990000;">urlencode</span><span style="color: #009900;">&#40;</span><span style="color: #990000;">serialize</span> <span style="color: #009900;">&#40;</span><span style="color: #000088;">$datas</span><span style="color: #009900;">&#41;</span><span style="color: #009900;">&#41;</span><span style="color: #339933;">.</span><span style="color: #0000ff;">&quot;' &gt; &quot;</span><span style="color: #339933;">;</span>
<span style="color: #000000; font-weight: bold;">?&gt;</span></pre></div></div>

<p><img src="http://blog.snaky.org/wp-content/uploads/2008/07/arraytograph_3.png" alt="" title="arraytograph_3" width="150" height="150" class="aligncenter size-full wp-image-59" /></p>
<p>Viel Spass damit <img src='http://blog.snaky.org/wp-includes/images/smilies/icon_smile.gif' alt=':-)' class='wp-smiley' /><br />
<br/><br />
Erweiterung von <a href='http://gwphp.feudal-times.net/?p=6'>Gaming with PHP</a></p>
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