3v4l.org

run code in 300+ PHP versions simultaneously
<?php $arr[] = array(0,1,2,3); $arr[] = array(4,5,2,1); $arr[] = array(0,0,0,0); $arr[] = array(0,1,2,3); var_export(array_unique($arr, SORT_REGULAR));
Output for git.master, git.master_jit, rfc.property-hooks
array ( 0 => array ( 0 => 0, 1 => 1, 2 => 2, 3 => 3, ), 1 => array ( 0 => 4, 1 => 5, 2 => 2, 3 => 1, ), 2 => array ( 0 => 0, 1 => 0, 2 => 0, 3 => 0, ), )

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