3v4l.org

run code in 300+ PHP versions simultaneously
<?php $array = new ArrayObject(array(1, 2)); $it = new ArrayIterator($array); while ($it->valid()) { echo $it->current(); $it->next(); } $array[] = 3; echo $it->valid() ? $it->current : "not valid";
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
12 Warning: Undefined property: ArrayIterator::$current in /in/OX0iA on line 15
Output for 7.0.0 - 7.0.20, 7.1.0 - 7.1.25, 7.2.0 - 7.2.33, 7.3.0 - 7.3.31, 7.4.0 - 7.4.33
12 Notice: Undefined property: ArrayIterator::$current in /in/OX0iA on line 15
Output for 7.3.32 - 7.3.33
12
Output for 5.0.0 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.24 - 5.5.35, 5.6.7 - 5.6.28
12not valid
Output for 4.3.2 - 4.3.11, 4.4.0 - 4.4.9
Fatal error: Cannot instantiate non-existent class: arrayobject in /in/OX0iA on line 3
Process exited with code 255.
Output for 4.3.0 - 4.3.1
Fatal error: Cannot instantiate non-existent class: arrayobject in /in/OX0iA on line 3
preferences:
218.81 ms | 401 KiB | 330 Q