3v4l.org

run code in 300+ PHP versions simultaneously
<?php $chars = "0123456789ABCDEFGHIJKLMOPQRSTUVWabcdefghijklmnopqrstuvw"; $length = strlen($chars); $per = $index % $length; $subst = substr($chars, $per); $disp = ord($subst); echo ($index << $disp);
Output for git.master, git.master_jit, rfc.property-hooks
Warning: Undefined variable $index in /in/3U9F1 on line 4 Warning: Undefined variable $index in /in/3U9F1 on line 7 0

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