3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $input = <<<INP value that I {want}, vs value "I do {NOT} want". Lets make it ' {nested {this {time}}} ' And yes, it's even "{bullet-{proof}}" whats :) INP; @preg_match_all('~("|\').*?\1(*SKIP)(*FAIL)|\{(?:[^{}]|(?R))*\}~', $input, $m); print_r($m[0]); ?>
Output for 4.4.9, 5.2.5 - 7.1.0
Array ( [0] => {want} )
Output for 4.3.0 - 4.4.8, 5.0.0 - 5.2.4