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<?php $arr = array( array("item_data"=>array(1,2,3)), array("item_data"=>array(4,5,6)), array("item_data"=>array(7,8,9)) ); print_r($arr); function merge($prev, $now) { return array_merge($prev, $now['item_data']); } $res = array_reduce($arr, "merge", array()); print_r($res);
Output for git.master, git.master_jit, rfc.property-hooks
Array ( [0] => Array ( [item_data] => Array ( [0] => 1 [1] => 2 [2] => 3 ) ) [1] => Array ( [item_data] => Array ( [0] => 4 [1] => 5 [2] => 6 ) ) [2] => Array ( [item_data] => Array ( [0] => 7 [1] => 8 [2] => 9 ) ) ) Array ( [0] => 1 [1] => 2 [2] => 3 [3] => 4 [4] => 5 [5] => 6 [6] => 7 [7] => 8 [8] => 9 )

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