note 125666 added to function.array-unique

Create multidimensional array unique for any single key index. <?php $users = [ ['id' => 1, 'name' => 'ecortes', 'phone' => '1111111'], ['id' => 2, 'name' => 'canepa', 'phone' => '222222'], ['id' => 1, 'name' => 'john', 'phone' => '3333333'], ]; function array_unique_multi($array, $key) { return array_reduce($array, function($acc, $curr) use($key) { if(!in_array($curr[$key], array_column($acc, $key))) { array_push($acc, $curr); } return $acc; }, []); } //Call the function $unique_users = array_unique_multi($users, 'id'); //output $users = [ ['id' => 1, 'name' => 'ecortes', 'phone' => '1111111'], ['id' => 2, 'name' => 'canepa', 'phone' => '222222'], ]; ?> ---- Server IP: 45.112.84.4 Probable Submitter: 45.91.159.165 (proxied: 201.144.227.194) ---- Manual Page -- http://php.net/manual/en/function.array-unique.php Edit -- https://master.php.net/note/edit/125666 Del: integrated -- https://master.php.net/note/delete/125666/integrated Del: useless -- https://master.php.net/note/delete/125666/useless Del: bad code -- https://master.php.net/note/delete/125666/bad+code Del: spam -- https://master.php.net/note/delete/125666/spam Del: non-english -- https://master.php.net/note/delete/125666/non-english Del: in docs -- https://master.php.net/note/delete/125666/in+docs Del: other reasons-- https://master.php.net/note/delete/125666 Reject -- https://master.php.net/note/reject/125666 Search -- https://master.php.net/manage/user-notes.php