3v4l.org

run code in 500+ PHP versions simultaneously
<?php $string = '=iferror(ifs(OR("foo", "bar"),"a",OR("tar", OR("scar", "baa")),"b",OR("lar"),"d"),"c") blah blah ifs(OR("foo", "bar"),"a") and another one ifs("a", OR("tar", OR("scar", "baa")),"b",OR("lar"),"d")'; $regex = '/ifs(\(((?>[^()]+)|(?-2))*\))/'; preg_match_all($regex, $string, $matches); print_r($matches[0]);
Output for 7.1.25 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.34, 8.2.0 - 8.2.30, 8.3.0 - 8.3.30, 8.4.1 - 8.4.18, 8.5.0 - 8.5.3
Array ( [0] => ifs(OR("foo", "bar"),"a",OR("tar", OR("scar", "baa")),"b",OR("lar"),"d") [1] => ifs(OR("foo", "bar"),"a") [2] => ifs("a", OR("tar", OR("scar", "baa")),"b",OR("lar"),"d") )
preferences:
103.14 ms | 1526 KiB | 4 Q