3v4l.org

run code in 300+ PHP versions simultaneously
<?php $result = []; $result["store"]["this"]["here"] = "test"; $key = "[store][this][here]"; // some housekeeping $keyArr = explode("][", $key); $keyArr[0] = trim($keyArr[0], "["); $keyArr[count($keyArr) - 1] = trim($keyArr[count($keyArr) - 1], "]"); $res = $result; foreach ($keyArr as $key) { if (isset($res[$key])) { $res = $res[$key]; } } var_dump($res); // test

preferences:
36.04 ms | 406 KiB | 5 Q