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<?php $array = [ 1 => [ 1 => [ 'anna', 'alice' ], 2 => [ 'bob', 'bartold' ] ], 2 => [ 1 => [ 'carol' ], 2 => [ 'david' ] ] ]; $result = []; /*$iterator = new \RecursiveIteratorIterator( new \RecursiveArrayIterator($array) ); foreach ($iterator as $result) { var_dump($result); }*/ array_walk_recursive($array, function ($e) use (&$result) {$result[] = $e;}); var_dump($result);
Output for git.master, git.master_jit, rfc.property-hooks
array(6) { [0]=> string(4) "anna" [1]=> string(5) "alice" [2]=> string(3) "bob" [3]=> string(7) "bartold" [4]=> string(5) "carol" [5]=> string(5) "david" }

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