Online PHP editor | output for I5o7D

@ 2014-03-22T15:32:19Z

<?php

function hasSpecialChar($subject) {
    $pattern = "/[`~!@#$%^&*()+=|{}':;',\\[\\].<>\/?~！@#￥%……&*（）——+|{}【】‘；：”\"“’。，、？]/";

    if (preg_match($pattern, $subject, $r)) {
var_dump($r);
        return true;
    }

    return false;
}

var_dump(hasSpecialChar('问答社区')); // boolean true
var_dump(hasSpecialChar('Segmentfault')); // boolean false
var_dump(hasSpecialChar('@Segmentfault')); // boolean true

Output for 4.3.0 - 4.3.11, 4.4.0 - 4.4.9, 5.0.0 - 5.0.5, 5.1.1 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.24 - 5.5.35, 5.6.7 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.33, 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: array(1) { [0]=> string(1) "�" } bool(true) bool(false) array(1) { [0]=> string(1) "@" } bool(true)
Output for 5.1.0: Fatal error: fatal flex scanner internal error--end of buffer missed in /in/I5o7D on line 16
Process exited with code 255.

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