二维数组按照指定的键值进行排序

/**
 * 二维数组按照指定的键值进行排序
 * @param  string $arr  数组
 * @param  string $keys 排序key
 * @param  string $type 排序方式
 * @return array
 */
function array_sort($arr, $keys, $type = 'asc')
{
    $keysvalue = $new_array = array();
    foreach ($arr as $k => $v) {
        $keysvalue[$k] = $v[$keys];
    }
    if ($type == 'asc') {
        asort($keysvalue);
    } else {
        arsort($keysvalue);
    }
    reset($keysvalue);
    foreach ($keysvalue as $k => $v) {
        $new_array[$k] = $arr[$k];
    }
    return $new_array;
}

使用实例

$array = array(
    array('name'=>'手机','brand'=>'诺基亚','price'=>1050),
    array('name'=>'笔记本电脑','brand'=>'lenovo','price'=>4300),
    array('name'=>'剃须刀','brand'=>'飞利浦','price'=>3100),
    array('name'=>'跑步机','brand'=>'三和松石','price'=>4900),
    array('name'=>'手表','brand'=>'卡西欧','price'=>960),
    array('name'=>'液晶电视','brand'=>'索尼','price'=>6299),
    array('name'=>'激光打印机','brand'=>'惠普','price'=>1200)
);
$list = array_sort($array,'price');
print_r($list);

结果

Array
(
    [4] => Array
        (
            [name] => 手表
            [brand] => 卡西欧
            [price] => 960
        )
    [0] => Array
        (
            [name] => 手机
            [brand] => 诺基亚
            [price] => 1050
        )
    [6] => Array
        (
            [name] => 激光打印机
            [brand] => 惠普
            [price] => 1200
        )
    [2] => Array
        (
            [name] => 剃须刀
            [brand] => 飞利浦
            [price] => 3100
        )
    [1] => Array
        (
            [name] => 笔记本电脑
            [brand] => lenovo
            [price] => 4300
        )
    [3] => Array
        (
            [name] => 跑步机
            [brand] => 三和松石
            [price] => 4900
        )
    [5] => Array
        (
            [name] => 液晶电视
            [brand] => 索尼
            [price] => 6299
        )
)