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run code in 300+ PHP versions simultaneously
<?php $array = array( array( 'id' => 29, 'name' => 'john' ), array( 'id' => 30, 'name' => 'joe' ), array( 'id' => 29, 'name' => 'jake' ) ); $filter = []; $array = array_filter($array, function($a) use (&$filter) { $ret = !isset($filter[$a['id']]); $filter[$a['id']] = true; return $ret; }); var_dump($array);
Output for 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 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 - 8.1.33, 8.2.0 - 8.2.29, 8.3.0 - 8.3.26, 8.4.1 - 8.4.13
array(2) { [0]=> array(2) { ["id"]=> int(29) ["name"]=> string(4) "john" } [1]=> array(2) { ["id"]=> int(30) ["name"]=> string(3) "joe" } }
preferences:
147.54 ms | 409 KiB | 5 Q