array-merge

In a piece of software, I merge two arrays with array_merge function. But I need to add the same array (with the same keys, of course) to an existing array. The problem: $A = array('a' => 1, 'b' => 2, 'c' => 3); $B = array('c' => 4, 'd'=> 5); array_merge($A, $B); // result [a] => 1 [b] => 2 [c] => 4 [d] => 5 As you see, 'c' => 3 is missed. So how can I merge all of them with the same keys? You need to use array_merge_recursive instead of array_merge . Of course there can only be one key equal to 'c' in the array, but the associated value will be an array containing both 3 and 4 . See it in

How to merge n number of array in php. I mean how can I do the job like : array_merge(from : $result[0], to : $result[count($result)-1]) OR array_merge_recursive(from: $result[0], to : $result[count($result) -1]) Where $result is an array with multiple arrays inside it like this : $result = Array( 0 => array(),//associative array 1 => array(),//associative array 2 => array(),//associative array 3 => array()//associative array ) My Result is : $result = Array( 0 => Array( "name" => "Name", "events" => 1, "types" => 2 ), 1 => Array( "name" => "Name", "events" => 1, "types" => 3 ), 2 => Array(