3v4l.org

run code in 300+ PHP versions simultaneously
<?php $var = 'test = null'; if(preg_match($var,'/\s{0,2}=\s{0,2}null/gi')) echo "MATCH";
Output for 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
Warning: preg_match(): Delimiter must not be alphanumeric, backslash, or NUL in /in/louFU on line 3
Output for 5.5.0 - 5.5.35, 5.6.0 - 5.6.28, 7.0.0 - 7.0.20, 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
Warning: preg_match(): Delimiter must not be alphanumeric or backslash in /in/louFU on line 3
preferences:
149.99 ms | 404 KiB | 256 Q