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
        )

)