note 118680 added to function.array-unique

I found the simplest way to "unique" multidimensional arrays as follows: <?php $array = array( 'a' => array(1, 2), 'b' => array(1, 2), 'c' => array(2, 2), 'd' => array(2, 1), 'e' => array(1, 1), ); $array = array_map('json_encode', $array); $array = array_unique($array); $array = array_map('json_decode', $array); print_r($array); ?> As you can see "b" will be removed without any errors or notices. ---- Server IP: 72.52.91.14 Probable Submitter: 89.132.250.40 ---- Manual Page -- http://php.net/manual/en/function.array-unique.php Edit -- https://master.php.net/note/edit/118680 Del: integrated -- https://master.php.net/note/delete/118680/integrated Del: useless -- https://master.php.net/note/delete/118680/useless Del: bad code -- https://master.php.net/note/delete/118680/bad+code Del: spam -- https://master.php.net/note/delete/118680/spam Del: non-english -- https://master.php.net/note/delete/118680/non-english Del: in docs -- https://master.php.net/note/delete/118680/in+docs Del: other reasons-- https://master.php.net/note/delete/118680 Reject -- https://master.php.net/note/reject/118680 Search -- https://master.php.net/manage/user-notes.php