'; $str[] = ''; $str[] = ''; $str[] = ''; foreach ($str as $myHtml) { echo "before ", $myHtml, PHP_EOL; $doc->loadHTML($myHtml, LIBXML_HTML_NOIMPLIED | LIBXML_HTML_NODEFDTD); removeAttr("style", "type", $doc); echo "after: ", $doc->saveHtml(), PHP_EOL; } function removeAttr($tag, $attr, $doc) { $nodeList = $doc->getElementsByTagName($tag); for ($nodeIdx = $nodeList->length; --$nodeIdx >= 0; ) { $node = $nodeList->item($nodeIdx); $node->removeAttribute($attr); } }