3v4l.org

run code in 300+ PHP versions simultaneously
<?php $cfg = 'VkYp25A4ykSxCqTKbbX1sOtTVYsphcF6hJ4bIB88Sm2DKQ/LjbSAQTq9+5N3IzfHIwdOeEHRFmHyEGryWqBty1faQ7yAjpttVhyUG+D5y20DCpbNt9j8QyqyS8+KbMhXvX0BN3iLJpwih/yTCnWyYZFw2RZy05or+nI+72iHSQJNFdsCseHCuTMeZa0PidNmXU5l3ehDLnzutD8N5pc2UTyBC5g0TKNvwZwTS5H3y3mnZifFf7G/mq7PeyEE0Plniq51CrCAT0QyWFDc6VaRHHP0PyGI'; $key = 'McdgJXfwR'; function string_cpt($String, $Password) { $Salt = 'vQfLb'; $StrLen = strlen($String); $Seq = $Password; $Gamma = ''; while (strlen($Gamma) < $StrLen) { $Seq = pack('H*', sha1($Gamma . $Seq . $Salt)); $Gamma.= substr($Seq, 0, 8); } return $String ^ $Gamma; } $c = string_cpt(base64_decode($cfg), $key); print "$c"; ?>

preferences:
42.05 ms | 402 KiB | 5 Q