3v4l.org

run code in 300+ PHP versions simultaneously
<?php $d = @preg_match("ascea(", "test"); // invalid regex if($d === FALSE) { print "Error in regex."; // get detailed info if needed with preg_last_error }
Output for 5.6.38, 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 - 8.1.31, 8.2.0 - 8.2.26, 8.3.0 - 8.3.14, 8.4.1
Error in regex.
preferences:
85.79 ms | 407 KiB | 5 Q