3v4l.org

run code in 300+ PHP versions simultaneously
<?php $string = "abcdefghijklmnopqrstuvwxyz"; // just used as an example // $string becomes "badcfehgjilknmporqtsvuxwzy" $now_in_pairs = str_split($string, 2); $reverse = array_map('strrev', $now_in_pairs); foreach($reverse as $r) { $new_string .= $r; } echo $new_string;
Output for git.master, git.master_jit, rfc.property-hooks
Warning: Undefined variable $new_string in /in/3c17q on line 14 badcfehgjilknmporqtsvuxwzy

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