如何从 2 个字段对数组进行排序？

Question

I have the following format of an array

[HomeTeam] => Brazil
[AwayTeam] => Croatia

How can I sort the array based on home and away teams.

So all Brazil will come first if they are a Home or an away team.

Do I need an array_multisort? I've given it a try, but not getting the right results.

Answer 1

use usort :

usort($myArray, function($a, $b) {
    return $a > $b;
});

you will need to modify return condition depending on how you want it to be sorted.

Answer 2

On www.php.net you can find this function:

<?php
function array_orderby()
{
    $args = func_get_args();
    $data = array_shift($args);
    foreach ($args as $n => $field) {
        if (is_string($field)) {
            $tmp = array();
           foreach ($data as $key => $row)
                $tmp[$key] = $row[$field];
            $args[$n] = $tmp;
           }
    }
    $args[] = &$data;
    call_user_func_array('array_multisort', $args);
    return array_pop($args);
}
? >

you can use it like this:

$sorted = array_orderby($data, 'field', SORT_ASC);

Source:: http://nl1.php.net/manual/en/function.array-multisort.php