PHP 多维数组按照指定的顺序进行排序

利用PHP的usort函数对多维数组按照指定的顺序进行排序：

例如：

public  function ceshi()

    {        

        $arr1 = array(

                

            array('id' => 1, 'name' => 'yhp'),

            array('id' => 2, 'name' => 'yhp2'),

            array('id' => 3, 'name' => 'yhp3'),

            array('id' => 4, 'name' => 'yhp4'),

            array('id' => 5, 'name' => 'yhp5'),

            array('id' => 6, 'name' => 'yhp6'),

            array('id' => 7, 'name' => 'yhp7'),

            array('id' => 8, 'name' => 'yhp8'),

            array('id' => 9, 'name' => 'yhp9'),

            array('id' => 10,'name' => 'yhp10'),

        );



        echo "排序前的数组：<pre>";

        print_r($arr1);

        echo "</pre>";



        usort($arr1, array($this, "compare"));



        echo "排序后的数组：<pre>";

        print_r($arr1);

        echo "</pre>";

       

    }

    

    public function compare($a, $b)

    {    

        $arr2 = array(6,8,7,9,3,2,4,1,5,10,11,12);



        return (array_search($a['id'], $arr2) < array_search($b['id'], $arr2)) ? -1 : 1;

    }  

排序后的数组：

Array

(

    [0] => Array

        (

            [id] => 6

            [name] => yhp6

        )



    [1] => Array

        (

            [id] => 8

            [name] => yhp8

        )



    [2] => Array

        (

            [id] => 7

            [name] => yhp7

        )



    [3] => Array

        (

            [id] => 9

            [name] => yhp9

        )



    [4] => Array

        (

            [id] => 3

            [name] => yhp3

        )



    [5] => Array

        (

            [id] => 2

            [name] => yhp2

        )



    [6] => Array

        (

            [id] => 4

            [name] => yhp4

        )



    [7] => Array

        (

            [id] => 1

            [name] => yhp

        )



    [8] => Array

        (

            [id] => 5

            [name] => yhp5

        )



    [9] => Array

        (

            [id] => 10

            [name] => yhp10

        )



)