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run code in 150+ php & hhvm versions
Bugs & Features
<?php $input = "value that I {want}, vs value \"I do {NOT} want\". Lets make'S {nested {this {time}}} what's And yes, it's even \"{bullet-{proof}}\" whats :) "; @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 5.2.0 - 5.2.4
Output for 4.3.0 - 4.4.8, 5.0.0 - 5.1.6
Notice: Undefined offset: 0 in /in/EOsiu on line 9