3v4l.org

run code in 300+ PHP versions simultaneously
<?php $it = new ArrayIterator(array("tmp", "foo", "bar", "bazbar")); $it = new RegexIterator($it, "/ba(.)/", RegexIterator::ALL_MATCHES); echo count(iterator_to_array($it));
based on 54duh
Output for 5.5.24 - 5.5.35, 5.6.8 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.21, 7.4.0 - 7.4.10, 8.0.0alpha1 - beta3
2
Output for 5.2.0 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 5.4.45
4
Output for 5.0.0 - 5.0.5, 5.1.0 - 5.1.6
Fatal error: Class 'RegexIterator' not found in /in/SkLsJ on line 4
Process exited with code 255.
Output for 4.4.2 - 4.4.9
Parse error: syntax error, unexpected ')', expecting '(' in /in/SkLsJ on line 4
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.3.11, 4.4.0 - 4.4.1
Parse error: parse error, unexpected ')', expecting '(' in /in/SkLsJ on line 4
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error, expecting `'('' in /in/SkLsJ on line 4
Process exited with code 255.