3v4l.org

run code in 300+ PHP versions simultaneously
<?php error_reporting(E_ALL); $x = array( //"prop1" => "foo", //"prop2" => "bar", //"prop3" => "boo", ); $xObj = new ArrayObject($x); $iterator = $xObj->getIterator(); if (! $iterator->valid()) { echo "no elem".PHP_EOL; return; } echo $iterator->key().': '.$iterator->current().PHP_EOL; $iterator->next(); while($iterator->valid()) { echo $iterator->key().': '.$iterator->current().PHP_EOL; $iterator->next(); }
Output for 5.5.0 - 5.5.35, 5.6.0 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.10, 7.2.0 - 7.2.33, 7.3.16 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.33, 8.2.0 - 8.2.29, 8.3.0 - 8.3.26, 8.4.1 - 8.4.13
no elem
preferences:
146.06 ms | 408 KiB | 5 Q