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@ 2015-11-26T08:24:47Z

<?php
class Palindrome
{
    public static function isPalindrome($str)
    {
        $s = strToLower(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
Performance
VLD
References
Branches

preg_replace: documentation ( source)
strtolower: documentation ( source)

preferences:dark modelive preview

54.81 ms | 402 KiB | 5 Q