3v4l.org

run code in 300+ PHP versions simultaneously
<?php var_dump(preg_match('/#user_id/', 'http://c.cpa6.ru/3U9P/#user_id#'))
Output for 5.4.0 - 5.4.16
Parse error: syntax error, unexpected end of file in /in/1G2J0 on line 2
Process exited with code 255.
Output for 5.3.0 - 5.3.26
Parse error: syntax error, unexpected $end in /in/1G2J0 on line 2
Process exited with code 255.
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183.56 ms | 1395 KiB | 51 Q