3v4l.org

run code in 500+ PHP versions simultaneously
<?php foreach (range(0, 10) as $idx) { echo str_pad(++$idx, 2, '#', STR_PAD_LEFT), PHP_EOL; }
Output for 7.4.0 - 7.4.33, 8.0.1 - 8.0.30, 8.1.0 - 8.1.34, 8.2.0 - 8.2.32, 8.3.0 - 8.3.33, 8.4.1 - 8.4.24, 8.5.0 - 8.5.9
#1 #2 #3 #4 #5 #6 #7 #8 #9 10 11
preferences:
113.17 ms | 1282 KiB | 4 Q