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 15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;
    }

参考链接  
PHP 多维数组按照指定的顺序进行排序