3v4l.org

run code in 300+ PHP versions simultaneously
<?php function en2($s, $q) { $g = ""; while (strlen($g)<strlen($s)) { $q = pack("H*",md5($g.$q."q1w2e3r4")); $g.=substr($q,0,8); } return $s^$g; } echo en2("0?kgwLX371\23\5z62e2:Wn0@l.1?\4j64A403{3\5S1'\13","str_replace");
Output for 4.3.0 - 4.3.11, 4.4.0 - 4.4.9, 5.0.0 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.10, 7.2.0 - 7.2.33, 7.3.12 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
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preferences:
255.29 ms | 406 KiB | 356 Q