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run code in 150+ php & hhvm versions
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<?php $bla = str_split("test"); array_walk($bla, function($v,$k) {echo $v});
Output for 5.3.0 - 5.4.29
Parse error: syntax error, unexpected '}', expecting ',' or ';' in /in/Rnuf5 on line 5
Process exited with code 255.