php sort two dimensional array

Following the previous article: PHP two-dimensional array sorting custom function, today, we introduce another example of PHP two-dimensional array sorting. Sorting two-dimensional arrays in PHP is very simple, mainly using the array_multisort function.

Example:

<?php
/**
* php二维数组排序
* edit bbs.it-home.org
*/
    $data = array();
    $data[] = array('volume' => 67, 'edition' => 2);
    $data[] = array('volume' => 86, 'edition' => 1);
    $data[] = array('volume' => 85, 'edition' => 6);
    $data[] = array('volume' => 98, 'edition' => 2);
    $data[] = array('volume' => 86, 'edition' => 6);
    $data[] = array('volume' => 67, 'edition' => 7);

    // 取得列的列表
    foreach ($data as $key => $row)
    {
        $volume[$key]  = $row['volume'];
        $edition[$key] = $row['edition'];
    }

    array_multisort($volume, SORT_DESC, $edition, SORT_ASC, $data);

    print_r($data);
?>

Output result:

Array ( [0] => Array ( [volume] => 98 [edition] => 2 )

[1] => Array ( [volume] => 86 [edition] => 1 )

[2] => Array ( [volume] => 86 [edition] => 6 )

[3] => Array ( [volume] => 85 [edition] => 6 )

[4] => Array ( [volume] => 67 [edition] => 2 )

[5] => Array ( [volume] => 67 [edition] => 7 ) )

Instructions: The parameters of the array_multisort function are very flexible. You can refer to the instructions in the PHP manual for in-depth study.

>>> For more information, please view the complete list of php array sorting methods