get wrapping element using preg_match php

Question

I want a preg_match code that will detect a given string and get its wrapping element. I have a string and a html code like:

$string = \"My text\";
$html = \"<         


        

Answer 1

It's bad idea use regex for this task. You can use DOMDocument

$oDom = new DOMDocument('1.0', 'UTF-8');
$oDom->loadXML("
" . $sHtml ."
");
get_wrapper($s, $oDom);

after recursively do

function get_wrapper($s, $oDom) {
    foreach ($oDom->childNodes AS $oItem) {
        if($oItem->nodeValue == $s) {
            //needed tag - $oItem->nodeName
        }
        else {
            get_wrapper($s, $oItem);    
        }
    }
}