3v4l.org

run code in 300+ PHP versions simultaneously
<?php echo intval(false === preg_match("#^[a-z0-9.:\s{}\-/\#\\\]+$#i", '1214L.785', $matches));
Output for 7.1.0 - 7.1.25, 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 - 8.1.31, 8.2.0 - 8.2.26, 8.3.0 - 8.3.14, 8.4.1
0
preferences:
78.16 ms | 407 KiB | 5 Q