PHP 多维数组按照指定的顺序进行排序-蒲公英云

PHP 多维数组按照指定的顺序进行排序

叁歲伎倆 2023-03-01 09:22 96阅读 0赞

PHP 多维数组按照指定的顺序进行排序

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;
    }

前面根据指定顺序合并后面随便

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'),
    );
    $arr2 = array(6,8,7,9);
    $arrNum = count($arr1);
    for($i=0;$i<$arrNum;$i++){ 
        if(in_array($arr1[$i]['id'],$arr2) ){ 
            $headData[] = $arr1[$i];
            unset($arr1[$i]);
        }
    }
    //echo "排序后的数组：";
    usort($headData, array($this, "compare"));
    print_r(array_merge($headData,$arr1));
}
public function compare($a, $b)
{ 
    $arr2 = array(6,8,7,9);
    return (array_search($a['id'], $arr2) < array_search($b['id'], $arr2)) ? -1 : 1;
}