3v4l.org

run code in 300+ PHP versions simultaneously
<?php $bla = str_split("test"); array_walk($bla, function(&$v, $k) {$v = 'k'});
Output for 5.3.0 - 5.3.28, 5.4.0 - 5.4.29
Parse error: syntax error, unexpected '}' in /in/CCNiG on line 5
Process exited with code 255.
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192.1 ms | 1399 KiB | 66 Q