php 二维数组排序实现程序

$ar = array(
       array("10", 11, 100, 100, "a"),
       array( 1, 2, "2", 3, 1)
     );
array_multisort($ar[0], SORT_ASC, SORT_STRING,
               $ar[1], SORT_NUMERIC, SORT_DESC);
var_dump($ar);
?>

array(2) {
[0]=> array(5) {
    [0]=> string(2) "10"
    [1]=> int(100)
    [2]=> int(100)
    [3]=> int(11)
    [4]=> string(1) "a"
}
[1]=> array(5) {
    [0]=> int(1)
    [1]=> int(3)
    [2]=> string(1) "2"
    [3]=> int(2)
    [4]=> int(1)
}
}

$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)
);

$ShoppingList = array_sort($array,'price');
print_r($ShoppingList);

function arraysort($data, $order = 'asc') {
//asc升序 desc降序
$temp = array ();
$count = count ( $data );
if ($count <= 0)
return false; //传入的数据不正确
if ($order == 'asc') {
for($i = 0; $i < $count; $i ++) {
for($j = $count - 1; $j > $i; $j --) {
if ($data [$j] < $data [$j - 1]) {
//交换两个数据的位置
$temp = $data [$j];
$data [$j] = $data [$j - 1];
$data [$j - 1] = $temp;
}
}
}
} else {
for($i = 0; $i < $count; $i ++) {
for($j = $count - 1; $j > $i; $j --) {
if ($data [$j] > $data [$j - 1]) {
$temp = $data [$j];
$data [$j] = $data [$j - 1];
$data [$j - 1] = $temp;
}
}
}
}

return $data;
}

$data = array (7, 5, 3, 8, 9, 1, 5, 3, 1, 24, 3, 87, 0, 33, 1, 12, 34, 54, 66, 32 );
var_dump ( arraysort ( $data ) ); //升序
echo ('
');
var_dump ( arraysort ( $data ,'desc') );//降序