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PODOMNode reference doesn't work anymore after appending it to another element twice
 

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  1. PODOMNode reference doesn't work anymore after appending it to another element twice
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    <p>I'm using the a wrapper around the PHP5-class DOMDocument to generate my HTML. This makes it easy to modify the HTML by using the DOM.</p> <p>An example is creating element #1 and adding it to the element #2 and still be able to modify element #1 directly.</p> <p>A problem arises however with the following:</p> <ul> <li>Element #1 is added to element #2</li> <li>Element #2 is added to element #3</li> <li>Element #1 is modified but no changes are visible in the DOM of element #3 (which contains #1 and #2)</li> </ul> <p>A simplified sample code:</p> <pre><code>&lt;?php $doc1 = new DOMDocument(); $el1 = $doc1-&gt;createElement('h1', 'Hello'); $doc1-&gt;appendChild($el1); $doc2 = new DOMDocument(); $el2 = $doc2-&gt;createElement('h2', 'World'); $doc2-&gt;appendChild($el2); $doc3 = new DOMDocument(); $el3 = $doc3-&gt;createElement('h3', 'Today'); $doc3-&gt;appendChild($el3); // Import el1 into el2 $el1 = $doc2-&gt;importNode($el1, true); $el2-&gt;appendChild( $el1 ); $doc1 = $doc2; // Import el2 into el3 $el2 = $doc3-&gt;importNode($el2, true); $el3-&gt;appendChild($el2); $doc2 = $doc3; // Modify el1 $el1-&gt;nodeValue = "Boo"; // This doesn't work? //$el2-&gt;nodeValue = "Boo"; // Changing element2 or 3 works... // Display result echo $doc3-&gt;saveHTML(); ?&gt;` </code></pre> <p>Modifying $el2 is still possible because it is deep-copied and added to $el3's DOM. $el1 however still points to $doc2/$el2's DOM and any changes are not reflected in $el3's DOM.</p> <p>Are there any generic ways to to directly point $el1 to the right node in $el3's DOM?</p>
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