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run code in 150+ php & hhvm versions
Bugs & Features
<?php $html_string = '<!DOCTYPE html> <html> <body> <div id="foo"> This is a paragraph with <strong>Some nested tags</strong> </div> <div class="test" id="bar"> <div> And a nested div? </div> </div> <div class="baz test"> <p> Pretty normal HTML. </p> </div> </body> </html>'; $regex = '/<div[^>]*?(class="(.+?)"[^>]*)?>((?:.*?(?:(?!<div)|(?R))*)*)' . '<\/div>/sm'; if (preg_match_all($regex, $html_string, $matches, PREG_SET_ORDER)) { foreach ($matches as $match) { if (in_array('test', explode(' ', $match[2]))) { echo trim ($match[4]); } } }
Output for 5.3.0 - 5.6.28, 7.0.0 - 7.1.0
Notice: Undefined offset: 4 in /in/Rerjl on line 31 Notice: Undefined offset: 4 in /in/Rerjl on line 31
Output for hhvm-3.10.0 - 3.12.0
Notice: Undefined index: 4 in /in/Rerjl on line 31 Notice: Undefined index: 4 in /in/Rerjl on line 31
Output for 4.3.0 - 5.2.17
Notice: Undefined offset: 4 in /in/Rerjl on line 31 Notice: Undefined offset: 4 in /in/Rerjl on line 31