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run code in 300+ PHP versions simultaneously
<?php $source = new \ArrayIterator([]); $toMerge = new \ArrayIterator(["a" => 1]); $iterator = new \AppendIterator; $iterator->append($source); $iterator->append($toMerge); var_dump($source);
Output for 5.6.0 - 5.6.40, 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 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 - 8.1.28, 8.2.0 - 8.2.19, 8.3.0 - 8.3.7
object(ArrayIterator)#1 (1) { ["storage":"ArrayIterator":private]=> array(0) { } }
preferences:
193.63 ms | 404 KiB | 293 Q