3v4l.org

run code in 300+ PHP versions simultaneously
<?php var_dump(preg_match('/([0-9]{1,3}\.){3}[0-9]{1,3}', '192.168.1.1'));
Output for 4.3.11, 4.4.0 - 4.4.9, 5.0.0 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.40, 7.0.0 - 7.0.33, 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
Warning: preg_match(): No ending delimiter '/' found in /in/HWS0l on line 2 bool(false)
Output for 4.3.0 - 4.3.10
Warning: No ending delimiter '/' found in /in/HWS0l on line 2 bool(false)
preferences:
299.28 ms | 401 KiB | 460 Q