3v4l.org

run code in 300+ PHP versions simultaneously
<?php function Recurse1($xml, $array = []) { foreach ($xml->children() as $child) { if (is_iterable($child)) { $array = array_merge($array, Recurse1($child, $array)); } else { $array[] = (string)$xml['role']; } } return $array; } $xml = new SimpleXMLElement( '<person> <child role="son1"> <child role="daughter1"/> </child> <child role="daughter2"> <child role="son2"> <child role="son3"/> </child> </child> </person>'); var_dump(Recurse1($xml));
Output for 7.1.0 - 7.1.25, 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 - 8.1.27, 8.2.0 - 8.2.17, 8.3.0 - 8.3.4
array(0) { }
Output for 5.6.38
Fatal error: Call to undefined function is_iterable() in /in/iKMlM on line 6
Process exited with code 255.

preferences:
186.1 ms | 401 KiB | 174 Q