3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php preg_match( '/(Clients=)([0-9]{1,}),/', "RunUO, Name=Pure Blood, Age=1, Clients=1, Items=110859, Chars=37967, Mem=270972K, Ver=2", $playersOnline ); echo $matches[1]; // 1234
Output for 5.0.4 - 5.0.5, 5.1.1 - 5.6.28, hhvm-3.12.0, 7.0.0 - 7.1.0
Notice: Undefined variable: matches in /in/umSKr on line 3
Output for hhvm-3.10.0

Process exited with code 153.
Output for 5.1.0
Fatal error: fatal flex scanner internal error--end of buffer missed in /in/umSKr on line 3
Process exited with code 255.
Output for 4.3.0 - 5.0.3
Notice: Undefined variable: matches in /in/umSKr on line 3