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<?php class Palindrome { public static function isPalindrome($str) { $s = toLower(preg_replace('/[^A-Za-z]/', '', $str)); echo $s; throw new Exception('Not implemented'); } } // For testing purposes (do not submit uncommented): echo Palindrome::isPalindrome('Noel sees Leon.');
Output for 7.0.0 - 7.0.20, 7.1.0 - 7.1.25, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
Fatal error: Uncaught Error: Call to undefined function toLower() in /in/qei9f:6 Stack trace: #0 /in/qei9f(13): Palindrome::isPalindrome('Noel sees Leon.') #1 {main} thrown in /in/qei9f on line 6
Process exited with code 255.
Output for 5.5.24 - 5.5.35, 5.6.8 - 5.6.28
Fatal error: Call to undefined function toLower() in /in/qei9f on line 6
Process exited with code 255.
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178.09 ms | 402 KiB | 197 Q