PHP two-dimensional array de-weight method

This article introduces the content of PHP two-dimensional array to the weight of the method, has a certain reference value, now share to everyone, the need for friends can refer to

1. First look at the two-bit array to be processed

Array ([    0] = = Array        (            [0] = 5            [1] = 6        )    [1] = = Array        (            [0] = 5        ) C10/>[2] = array        (            [0] = 5            [1] = 7        )    [3] = = Array        (            [0] = 5            [ 1] = 6            [2] =            [3] = +)        )

2. Convert the two-dimensional array to a one-dimensional array ($arr is your array above)

$result = Array_reduce ($arr, ' Array_merge ', Array ());

Look at the results.

Array (    [0] = 5    [1] = 6    [2] = 5    [3] = 5    [4] = 7    [5] = 5    [6] => ; 6    [7] =    [8] = 28)

3. Use array functions to remove duplicate values

$data = Array_unique ($result);

Array (    [0] = 5    [1] = 6    [4] = 7    [7] =    [8] = 28)

Complete!

If there is a more convenient way, please give more advice!