PHP Sort Array By SubArray Value

In this tutorial learn how to sort Array by subArray value, we using array_multisort() method and array_map() method to sort multidimensional array.

in this function pass the multidimensional and set the return value of SubArray element/value to Sorting an Array,

can be sort array by ascending using SORT_ASC or Descending using SORT_DESC.

here just replaced $array with <array_name> and SubArray value with <sub_array_value> in this function only

array_multisort(array_map(function($element) {
      return $element['<sub_array_value>'];
  }, <array_name>), SORT_ASC, $array);

Complete Tutorial sort array by SubArray value

<?php

$array = Array
(
    0 => Array
        (
            'user_id' => 10,
             'id' => 1,
             'Number' => 3,
             'Active' => 1,
             'Updated' => '2010-03-17 15:44:12',
        ),

    1 => Array
        (
            'user_id' => 9,
             'id' => 2,
             'Number' => 2,
             'Active' => 1,
             'Updated' => '2010-03-17 15:44:12',

        ),

    2 => Array
        (
            'user_id' => 8,
             'id' => 3,
             'Number' => 1,
             'Active' => 1,
             'Updated' => '2010-03-17 15:44:12',

        )
);
array_multisort(array_map(function($element) {
      return $element['user_id'];
  }, $array), SORT_ASC, $array);
  
print_r($array);

OUTPUT of Above Tutorial : demo

Array
(
    [0] => Array
        (
            [user_id] => 8
            [id] => 3
            [Number] => 1
            [Active] => 1
            [Updated] => 2010-03-17 15:44:12
        )

    [1] => Array
        (
            [user_id] => 9
            [id] => 2
            [Number] => 2
            [Active] => 1
            [Updated] => 2010-03-17 15:44:12
        )

    [2] => Array
        (
            [user_id] => 10
            [id] => 1
            [Number] => 3
            [Active] => 1
            [Updated] => 2010-03-17 15:44:12
        )

)