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POHow do you pass a variable to a class extension?
 

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  1. POHow do you pass a variable to a class extension?
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    <p>The concept of adding a variable to a class's extension is something I am not grasping and could use some help.</p> <p>This is an example of a class I am extending. It works great but I can't access the $XML variable. I could make $XML a global but I know to avoid doing that.</p> <pre><code>&lt;?php //Sample XML Object $XML = "&lt;?xml version=\"1.0\" encoding=\"UTF-8\"?&gt; &lt;data&gt;&lt;foo&gt;Bingo!&lt;/foo&gt;&lt;/data&gt;"; $XML = simplexml_load_string($XML); // Extend the class class myExt extends ENTERPRISE { public function HTMLBlock() { // Set font $this-&gt;SetFont('helvetica', 'B', 10); $html = ' &lt;P style="font-weight:normal;"&gt; This is a test text cell&lt;br /&gt; Foo is set to '.$XML-&gt;foo.' &lt;/P&gt; '; // Title $this-&gt;htmlToBlock(90, '200', $HTML ); } } $pdf = new myExt('L', 'Letter', 'Landscape', true, 'UTF-8', false); ?&gt; </code></pre> <p>I have read about constructs. I know I need to add to the parent construct, I still don't undersand where/how I send it the variable. I started with something like this. (not working)</p> <pre><code>&lt;?php //Sample XML Object $XML = "&lt;?xml version=\"1.0\" encoding=\"UTF-8\"?&gt; &lt;data&gt;&lt;foo&gt;1&lt;/foo&gt;&lt;/data&gt;"; $XML = simplexml_load_string($XML); // Extend the class class myExt extends ENTERPRISE { function __construct($xmlData) { parent::__construct(); } public function HTMLBlock() { // Set font $this-&gt;SetFont('helvetica', 'B', 10); $html = ' &lt;P style="font-weight:normal;"&gt; This is a test text cell&lt;br /&gt; Foo is set to '.$XML-&gt;foo.' &lt;/P&gt; '; // Title $this-&gt;htmlToBlock(90, '200', $HTML ); } } $pdf = new myExt('L', 'Letter', 'Landscape', true, 'UTF-8', false); ?&gt; </code></pre> <p>Do I somehow send the myExt() an additional parameter? Magically at the end? I tried it but didn't work. Maybe something like:</p> <pre><code>$pdf = new myExt('L', 'Letter', 'Landscape', true, 'UTF-8', false,$XML); </code></pre> <p>Thanks for any guidance!</p>
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    1. COYou defined `$XML` in the global scope. So it *is* a global variable. If you want it to be a class variable, you need to define it inside the class, but outside any class functions.
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    2. COCan you show us what the `ENTERPRISE` class looks like?
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    3. COIf you're going to override the superclass constructor method, you probably aught to be passing in all of the arguments it accepts… that won't happen magically.
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      1. USMatthematics
 

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