php - how to merge 2d array that have different no of element for each array

Question

I have 2 set of 2d array and i want merge into 1 2d array. but the number of element in each array its not same and for the first 2 element is same and i don\'t want to duplicat

Answer 1

$out = array();
for ($i=0; $i

Output:

Array
(
    [0] => Array
        (
            [0] => 25/2/2013
            [1] => 8.45 a.m
            [2] => 9.98
            [3] => 1.23
            [4] => 6.1
        )

    [1] => Array
        (
            [0] => 25/2/2013
            [1] => 8.46 a.m
            [2] => 9.02
            [3] => 1.75
        )

)