php / php/php-src

Avoid libxml2's xmlNodeSetContent

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#19,189 5 comments 0 reactions 1 assignee View on GitHub

@ndossche is already working on this.

Since Jul 21, 2025.

Extension: libxml Feature Status: Verified
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C
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Description

Description

xmlNodeSetContent decodes character and entity references which is typically not what users expect. This can be worked around by first calling xmlNodeSetContent with a NULL pointer to clear the node and then using xmlNodeAddContent which adds the string verbatim.

Here's an example:

<?php
$doc = new DOMDocument();
$doc->loadXML("<!DOCTYPE doc [ <!ENTITY e 'ent'> ]><doc/>");
$root = $doc->documentElement;
$root->nodeValue = "&lt; &e; &gt;";
echo($root->nodeValue); # prints "< ent >"
PHP Version
All versions
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