3v4l.org

run code in 300+ PHP versions simultaneously
<?php echo strcspn('cdplayer', 'b..e'); echo "\n---\n"; echo strcspn('cdplayer', 'bcde');
Output for 7.4.0 - 7.4.33, 8.0.1 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.19, 8.3.0 - 8.3.7
6 --- 0
preferences:
70.32 ms | 402 KiB | 123 Q