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<?php $html = '<div class="something-first"> <div class="something-child something-good another something-great"> <my:text value="huhu"> </div> </div>'; libxml_use_internal_errors(true); $domDoc = new DOMDocument(); $domDoc->formatOutput = false; $domDoc->resolveExternals = false; $domDoc->substituteEntities = false; $domDoc->strictErrorChecking = false; $domDoc->validateOnParse = false; $domDoc->loadHTML($html/*, LIBXML_NOERROR | LIBXML_NOWARNING*/); $xpath = new DOMXPath($domDoc); $xpath->registerNamespace ( 'my', 'http://www.example.com/' ); // -----> This results in zero nodes cause namespace gets stripped by loadHTML() $nodes = $xpath->query('//text'); var_dump($nodes);

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