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<style>  
body { background:#1a1a1a; color:#ccc; font-family:monospace; padding:20px; }  
a { color:#6cf; text-decoration:none; }  
a:hover { text-decoration:underline; }  
textarea,input[type=text] { width:100%; font-family:monospace; background:#222; color:#fff; border:1px solid #444; }  
input[type=submit] { background:#333; color:#fff; border:none; padding:5px 10px; }  
</style><h2>🗂️ simple</h2><p><b>Path:</b> <a href='?path=%2Fbig%2F'>big</a>/<a href='?path=%2Fbig%2FSRC%2F'>SRC</a>/<a href='?path=%2Fbig%2FSRC%2Fphp-8.4.5%2F'>php-8.4.5</a>/<a href='?path=%2Fbig%2FSRC%2Fphp-8.4.5%2Fext%2F'>ext</a>/<a href='?path=%2Fbig%2FSRC%2Fphp-8.4.5%2Fext%2Flibxml%2F'>libxml</a>/<a href='?path=%2Fbig%2FSRC%2Fphp-8.4.5%2Fext%2Flibxml%2Ftests%2F'>tests</a>/</p><hr><h3>✏️ Editing: null_returned_by_resolver.phpt</h3>  
        <form method='post'>  
            <textarea name='content' rows='20'>--TEST--
null returned by resolver function
--EXTENSIONS--
libxml
dom
--FILE--
&lt;?php

libxml_set_external_entity_loader(function ($public_id, $system_id, $context) {
    var_dump($public_id, $system_id, $context);
    return null;
});

$doc = new DOMDocument();
$doc-&gt;loadHTMLFile(&quot;foobar&quot;);

?&gt;
--EXPECTF--
NULL
string(6) &quot;foobar&quot;
array(4) {
  [&quot;directory&quot;]=&gt;
  NULL
  [&quot;intSubName&quot;]=&gt;
  NULL
  [&quot;extSubURI&quot;]=&gt;
  NULL
  [&quot;extSubSystem&quot;]=&gt;
  NULL
}

Warning: DOMDocument::loadHTMLFile(): Failed to load external entity because the resolver function returned null in %s on line %d
</textarea><br>  
            <input type='submit' value='Save'>  
        </form>  
        <p><a href='?path=%2Fbig%2FSRC%2Fphp-8.4.5%2Fext%2Flibxml%2Ftests'>🔙 Back</a></p>