Online PHP editor | refs for 6shLt

@ 2014-06-27T18:21:25Z

<?php
$usernameSearch = '';

    if (false === (bool)!preg_match('/[^a-z_\-0-9]/i', $usernameSearch) || strlen($usernameSearch) > 14) { 

        echo 'false'; 

    } else { 

        echo 'true'; 
    }