array_multisort数组排序问题，请看代码！

[落叶秋2020]

Array ( [0] => Array ( [id] => 1 [username] => admin [admin1] => 10 ) [1] => Array ( [id] => 4 [username] => nihexiang [admin1] => 11 ) [2] => Array ( [id] => 5 [username] => 835 [admin1] => 18 ) [3] => Array ( [id] => 6 [username] => wangzhan [admin1] => 12 ) [4] => Array ( [id] => 13 [username] => administrator [admin1] => 13 ) [5] => Array ( [id] => 14 [username] => 19861215 [admin1] => 16 ) [6] => Array ( [id] => 15 [username] => visabest [admin1] => 15) )

//数组是走数据库里面读取到数组中的
问题：
1、我怎么用array_multisort排序方法把admin1的值从小到大排序，进行SORT_ASC排序或者是SORT_DESC？请高手指点啊？

[qs9515]

你sql语句不 可以order by admin1吗？

[tfxg]

SORT_ASC是遞增，SORT_DESC遞減

[落叶秋2020]

如果用SQL语句肯定可以排序了，我的意思怎么在数组中进行排序

[xuzuning]

$ar = array(
 array( 'id' => 1, 'username' => 'admin', 'admin1' => 10 ),
 array( 'id' => 4, 'username' => 'nihexiang', 'admin1' => 11 ),
 array( 'id' => 5, 'username' => '835', 'admin1' => 18 ),
 array( 'id' => 6, 'username' => 'wangzhan', 'admin1' => 12 ),
 array( 'id' => 13, 'username' => 'administrator', 'admin1' => 13 ),
 array( 'id' => 14, 'username' => '19861215', 'admin1' => 16 ),
 array( 'id' => 15, 'username' => 'visabest', 'admin1' => 15),
);

foreach($ar as $v) $r[] = $v['admin1'];
array_multisort($r, SORT_DESC, $ar);

print_r($ar);

Array
(
    [0] => Array
        (
            [id] => 5
            [username] => 835
            [admin1] => 18
        )

    [1] => Array
        (
            [id] => 14
            [username] => 19861215
            [admin1] => 16
        )

    [2] => Array
        (
            [id] => 15
            [username] => visabest
            [admin1] => 15
        )

    [3] => Array
        (
            [id] => 13
            [username] => administrator
            [admin1] => 13
        )

    [4] => Array
        (
            [id] => 6
            [username] => wangzhan
            [admin1] => 12
        )

    [5] => Array
        (
            [id] => 4
            [username] => nihexiang
            [admin1] => 11
        )

    [6] => Array
        (
            [id] => 1
            [username] => admin
            [admin1] => 10
        )

)

[落叶秋2020]

xuzuning你好，多谢！功能已经实现，马上结贴