note 105692 added to domxpath.query

I hope it will be helpful for someone: I spent some time to solve the problem when you query a string with quotes inside. Suppose you have: $parameter = "aaa \"bbb\""; $domxpath->query("//path[text()=\"".$parameter."\""]; In versions > 5.3.0 there is registerPhpFunctions where you can put an addslashes. But in older version you cannot do it in simple way. So the solution is to use a concat function. So when you have a substring with " inside, wrap it with '. And when you have a substring with ', then wrap with in ". The code is: $dom = new DOMDocument; $dom->loadXML("<name>'bla' \"bla\" bla</name>"); $xpath = new DOMXPath($dom); $nodeList = $xpath->query("//name[text()=concat(\"'bla' \" ,'\"bla\"' ,\" bla\")]"); Below is the function that receives a string and returns a concat pattern for the xpath query. function getPattern_MQ($pattern) { // initiating an array of substrings $ar = array(); // points to the current position in a string $offset = 0; $strlen = strlen($pattern); while (true) { // find a position of quotes $qPos = strpos($pattern, "\"", $offset); if (!$qPos) { // no more quotes $leftOver = $offset - $strlen; if ($leftOver < 0) { $string = substr($pattern, $leftOver); $ar[] = "\"" . $string . "\""; } break; } // add the whole substring before the quotes into the array $ar[] = "\"" . substr($pattern, $offset, ($qPos - $offset)) . "\""; // add the quotes wrapped with single quot $ar[] = "'" . substr($pattern, $qPos, 1) . "'"; $offset = $qPos + 1; } // join the array to get: concat("aaa",'"',"bbb",'"'); $pattern = "concat(''," . join(",", $dynamicPatternsAr) . ")"; return $pattern; } ---- Server IP: 212.150.176.150 Probable Submitter: 91.143.233.99 ---- Manual Page -- http://www.php.net/manual/en/domxpath.query.php Edit -- https://master.php.net/note/edit/105692 Del: integrated -- https://master.php.net/note/delete/105692/integrated Del: useless -- https://master.php.net/note/delete/105692/useless Del: bad code -- https://master.php.net/note/delete/105692/bad+code Del: spam -- https://master.php.net/note/delete/105692/spam Del: non-english -- https://master.php.net/note/delete/105692/non-english Del: in docs -- https://master.php.net/note/delete/105692/in+docs Del: other reasons-- https://master.php.net/note/delete/105692 Reject -- https://master.php.net/note/reject/105692 Search -- https://master.php.net/manage/user-notes.php