3v4l.org

run code in 300+ PHP versions simultaneously
<?php $dom1="kk"; $dom0="kk.com"; $dom = preg_replace($dom1, "", $dom0); echo $dom;
Output for 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
Warning: preg_replace(): Delimiter must not be alphanumeric, backslash, or NUL in /in/7NN3i on line 4
Output for 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
Warning: preg_replace(): Delimiter must not be alphanumeric or backslash in /in/7NN3i on line 4
preferences:
253.88 ms | 404 KiB | 376 Q