3v4l.org

run code in 300+ PHP versions simultaneously
<?php $id3 = array(1,2,3,4,5); $no_diff= array(4,5,6,7); $ids = array(1,2,3,4,5,6,7); var_dump(array_merge($id3, array_diff($no_diff, $ids)));

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40.98 ms | 402 KiB | 5 Q