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<?php function flatten(array $array) { $return = array(); array_walk_recursive($array, function($a, $b) use (&$return) { $return[$b] = $a; }); return $return; } $a = array(1,2,array(3,4, array(5,6,7), 8), 9); $array = array( 1 => array( 5 => array( 3 => 'testvalue1' ) ), 2 => array( 6 => 'testvalue2' ), 3 => 'testvalue3', 4 => 'testvalue4', ); var_dump(flatten($a));
Output for git.master, git.master_jit, rfc.property-hooks
array(4) { [0]=> int(5) [1]=> int(6) [2]=> int(7) [3]=> int(9) }

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