3v4l.org

run code in 300+ PHP versions simultaneously
<?php $ai = new ArrayIterator(range(0, 2)); iterator_apply($ai, function() { var_dump(func_get_args()); return true; }, array(1, 2));
Output for 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 - 8.1.34, 8.2.0 - 8.2.30, 8.3.0 - 8.3.30, 8.4.1 - 8.4.18, 8.5.0 - 8.5.3
array(2) { [0]=> int(1) [1]=> int(2) } array(2) { [0]=> int(1) [1]=> int(2) } array(2) { [0]=> int(1) [1]=> int(2) }
preferences:
117.74 ms | 1991 KiB | 4 Q