请教高手:求多维数组排序

[njxiaod]

Array
(
    [0] => stdClass Object
        (
            [total] => 1
            [name] => Baby
 
        )

    [parent_161] => stdClass Object
        (
 
            [name] => Cab
            [total] => 3

        )

    [1] => stdClass Object
        (
            [total] => 3
            [name] => Tree

        )
)
//如果按照name asc 排序？并保持结构不变？

[jlzan1314]

uasort() 去看看用法就知道了.

[潇湘博客]

你要怎么样排序啥··

[njxiaod]

没人知道？

[igaojie]

$arr = array(
	'0'=>array('total'=>1,'name'=>'Baby'),
	'parent_16'=>array('total'=>3,'name'=>'Cab'),
	'1'=>array('total'=>3,'name'=>'Tree'),
);

uasort($arr,"mysort");
print_r($arr);

function mysort($arr1=array(),$arr2=array()){
	
	if($arr1['name'] == $arr2['name']){
		return 0;
	}
	return ($arr1['name'] > $arr2['name'])?'1':'-1';
}

有时间多看看手册比较好～～呵呵·～～

[igaojie]

function natsort2d( &$arrIn, $index = null )
{
   
   $arrTemp = array();
   $arrOut = array();
   
   foreach ( $arrIn as $key=>$value ) {
       
       reset($value);
       $arrTemp[$key] = is_null($index)
                           ? current($value)
                           : $value[$index];
   }
   
   natsort($arrTemp);
   
   foreach ( $arrTemp as $key=>$value ) {
       $arrOut[$key] = $arrIn[$key];
   }
   
   $arrIn = $arrOut;
   
}

上面是我在手册里看到的函数 你可以试试··二维的自然排序法

[amani11]

虽然方法差不多

但是LZ的是对象数组，并非标题所说的多维数组

[moliyishengyuan]

<?php
class Test
{
    public $id;
    public $name;

    public function __construct($id, $name)
    {
        $this->id = $id;
        $this->name = $name;
    }
}

$test1 = new Test(1, 'q1');
$test2 = new Test(2, 'w2');
$test3 = new Test(3, 'a3');

$data[] = $test1;
$data[] = $test2;
$data[] = $test3;

var_dump($data);

usort($data, 'sortObj');

var_dump($data);

function sortObj($a, $b)
{
    $a_name = $a->name;
    $b_name = $b->name;
    if ($a_name == $b_name)
    {
        return 0;
    }

    return ($a_name < $b_name) ? -1 : 1;
}
?>

output:
排序前
array
0 =>
object(Test)[1]
public 'id' => int 1
public 'name' => string 'q1' (length=2)
1 =>
object(Test)[2]
public 'id' => int 2
public 'name' => string 'w2' (length=2)
2 =>
object(Test)[3]
public 'id' => int 3
public 'name' => string 'a3' (length=2)
排序后
array
0 =>
object(Test)[3]
public 'id' => int 3
public 'name' => string 'a3' (length=2)
1 =>
object(Test)[1]
public 'id' => int 1
public 'name' => string 'q1' (length=2)
2 =>
object(Test)[2]
public 'id' => int 2
public 'name' => string 'w2' (length=2)

[xuzuning]

$ar = array(
  (object)array( 'total' => 1, 'name' => 'Baby'),
  'parent_161' => (object)array( 'name' => 'Cab', 'total' =>3),
  (object)array( 'total' => 3, 'name' => 'Tree'),
);

foreach($ar as $v)
  $p[] = $v->name;

array_multisort($p, SORT_ASC, $ar);

print_r($ar);

Array
(
    [0] => stdClass Object
        (
            [total] => 1
            [name] => Baby
        )

    [parent_161] => stdClass Object
        (
            [name] => Cab
            [total] => 3
        )

    [1] => stdClass Object
        (
            [total] => 3
            [name] => Tree
        )

)

[在-云端]

[Quote=引用 6 楼 amani11 的回复:]

虽然方法差不多

但是LZ的是对象数组，并非标题所说的多维数组
[/Quote]

强制类型转换就ok了!

[LKK]

学习了。。