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<?php $array1 = array( 'colors' => array( 'red', 'yellow', 'blue', ), 'shapes' => array( 'circle', 'square', ), ); $array2 = array( 'colors' => array( 'green', 'orange', ), 'shapes' => array( 'triangle', ), ); var_dump(array_merge_recursive($array1, $array2));
Output for 4.3.0 - 7.1.0
array(2) { ["colors"]=> array(5) { [0]=> string(3) "red" [1]=> string(6) "yellow" [2]=> string(4) "blue" [3]=> string(5) "green" [4]=> string(6) "orange" } ["shapes"]=> array(3) { [0]=> string(6) "circle" [1]=> string(6) "square" [2]=> string(8) "triangle" } }