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<?php $challenge = function() { $f = $_GET['eval']; $f = str_replace(array('`', '$', '*', '#', ':', '\\', '"', "'", '(', ')', '.', '>'), '', $f); if((strlen($f) > 13) || (false !== strpos($f, 'return'))) { die('sorry, not allowed!'); } try { eval("\$spaceone = $f"); } catch (Exception $e) { return false; } return ($spaceone === '1337'); };
Output for 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.33, 7.2.6 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.27, 8.2.0 - 8.2.17, 8.3.0 - 8.3.4
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17
Parse error: syntax error, unexpected T_FUNCTION in /in/NVYbT on line 2
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.3.11, 4.4.0 - 4.4.1, 5.0.0 - 5.0.5
Parse error: parse error, unexpected T_FUNCTION in /in/NVYbT on line 2
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/NVYbT on line 2
Process exited with code 255.

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