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run code in 150+ php & hhvm versions
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<?php $a = function () { return 13;}; $_GET['s'] = "\0lambda_1"; var_dump($_GET['s']();
Output for 5.3.0 - 5.4.29
Parse error: syntax error, unexpected ';' in /in/VBPKr on line 7
Process exited with code 255.