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run code in 150+ php & hhvm versions
Bugs & Features
<?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 - 5.0.5, 5.1.1 - 5.6.28, hhvm-3.10.0 - 3.12.0, 7.0.0 - 7.1.0
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.