php 數組排序

標籤：

一、一維數組排序

    1.1、sort以升序對數組排序

$arrSort=array(3,56,6,8,9,7,6);sort($arrSort);print_r($arrSort);

輸出：

   Array

(
    [0] => 3
    [1] => 6
    [2] => 6
    [3] => 7
    [4] => 8
    [5] => 9
    [6] => 56
)

    1.2、rsort以降序對數組排序

         

$arrRSort=array(3,56,6,8,9,7,6);rsort($arrRSort);print_r($arrRSort);

輸出：

 Array
(
    [0] => 56
    [1] => 9
    [2] => 8
    [3] => 7
    [4] => 6
    [5] => 6
    [6] => 3
)

    1.3、asort根據值，以升序對關聯陣列進行排序

 

$arrASort=[   "name"=>"wangk",    "blog"=>"rhythmk.cnblogs.com",    "address"=>"hunan",    "company"=>"abcdef"];asort($arrASort);print_r($arrASort);

 

輸出：

(
    [company] => abcdef
    [address] => hunan
    [blog] => rhythmk.cnblogs.com
    [name] => wangk
)

 

    1.4、ksort根據鍵，以升序對關聯陣列進行排序

$arrKSort=[    "name"=>"wangk",    "blog"=>"rhythmk.cnblogs.com",    "address"=>"hunan",    "company"=>"abcdef"];ksort($arrKSort);print_r($arrKSort);

輸出：

(
    [address] => hunan
    [blog] => rhythmk.cnblogs.com
    [company] => abcdef
    [name] => wangk
)

    1.5、arsort根據值，以降序對關聯陣列進行排序

$arrARSort=[    "name"=>"wangk",    "blog"=>"rhythmk.cnblogs.com",    "address"=>"hunan",    "company"=>"abcdef"];arsort($arrARSort);print_r($arrARSort);

輸出：

Array
(
    [name] => wangk
    [blog] => rhythmk.cnblogs.com
    [address] => hunan
    [company] => abcdef
)

    1.6、krsort根據鍵，以降序對關聯陣列進行排序

$arrKRSort=[    "name"=>"wangk",    "blog"=>"rhythmk.cnblogs.com",    "address"=>"hunan",    "company"=>"abcdef"];krsort($arrKRSort);print_r($arrKRSort);

輸出：

Array
(
    [name] => wangk
    [company] => abcdef
    [blog] => rhythmk.cnblogs.com
    [address] => hunan
)

二、多維陣列自訂排序

    

$arrUSort=[    ["id"=>10,"title"=>"abcd"],    ["id"=>11,"title"=>"dvbcd"],    ["id"=>2,"title"=>"cddgbcd"],    ["id"=>5,"title"=>"ea"],    ["id"=>8,"title"=>"aceg"]]; function UserDefinedSort($a,$b){    if($a["title"]>$b["title"])    {        return  1;    }else{        return  0;    }}usort($arrUSort,‘UserDefinedSort‘);print_r($arrUSort);

輸出：

 Array
(
    [0] => Array
        (
            [id] => 10
            [title] => abcd
        )

    [1] => Array
        (
            [id] => 8
            [title] => aceg
        )

    [2] => Array
        (
            [id] => 2
            [title] => cddgbcd
        )

    [3] => Array
        (
            [id] => 11
            [title] => dvbcd
        )

    [4] => Array
        (
            [id] => 5
            [title] => ea
        )

)

 

 

參考：

http://www.w3school.com.cn/php/php_arrays_sort.asp

php 數組排序