按列对二维数组进行排序[重复]

Question

我和数组，我想按 [sys_title] 键索引升序排序该数组。我该怎么办？

[0] => Array
(
    [sys_id] => 9
    [sys_title] => Checklist
    [sys_home] => /cp/system/chl/
)

[1] => Array
(
    [sys_id] => 8
    [sys_title] => Bakery Ordering System
    [sys_home] => /cp/system/bos/
)

预期结果应该是这样的：

[0] => Array
(
    [sys_id] => 8
    [sys_title] => Bakery Ordering System
    [sys_home] => /cp/system/bos/
)

[1] => Array
(
    [sys_id] => 9
    [sys_title] => Checklist
    [sys_home] => /cp/system/chl/
)

Answer 1

你可以试试这段代码：

usort($data,function($a,$b){
    return strcmp($a['sys_title'],$b['sys_title']);
});

print_r($data);

Answer 2

假设你的数组名称是 $a 那么：

$tmp = Array();
foreach($a as &$ma) {
    $tmp[] = &$ma["sys_title"];
    array_multisort($tmp, $a);
}

结果将会是

Array
(
    [0] => Array
        (
            [sys_id] => 8
            [sys_title] => Bakery Ordering System
            [sys_home] => /cp/system/bos/
        )

    [1] => Array
        (
            [sys_id] => 9
            [sys_title] => Checklist
            [sys_home] => /cp/system/chl/
        )

)