3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $token = 'áéíèàùñ�ê�ä�ö�ü�ç��ø�é�æ�å�ä�ö����< >'; echo (mb_eregi('^[^!@\[\]\{\}<>?=]+$', $token) !== false) ? 'safe' : 'unsafe';
Output for 4.3.4 - 5.6.28, hhvm-3.12.0, 7.0.0 - 7.1.0
unsafe
Output for hhvm-3.10.0

Process exited with code 153.
Output for 4.3.2 - 4.3.3
Fatal error: Call to undefined function: mb_eregi() in /in/AIg7J on line 4
Process exited with code 255.
Output for 4.3.0 - 4.3.1
Fatal error: Call to undefined function: mb_eregi() in /in/AIg7J on line 4