3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $a = new ArrayIterator(); $b = new CallbackFilterIterator($a, 'phpinfo');
based on Pumc8
Output for 5.4.0 - 7.1.0
Output for 5.0.0 - 5.3.29
Fatal error: Class 'CallbackFilterIterator' not found in /in/5tBii on line 4
Process exited with code 255.
Output for 4.3.2 - 4.4.9
Fatal error: Cannot instantiate non-existent class: arrayiterator in /in/5tBii on line 3
Process exited with code 255.
Output for 4.3.0 - 4.3.1
Fatal error: Cannot instantiate non-existent class: arrayiterator in /in/5tBii on line 3