Question

我有这两个数组：

1：

Array
(
    [0] => stdClass Object
        (
            [id] => 1
            [name] => Type 1
            [rate] => 100.00
        )

    [1] => stdClass Object
        (
            [id] => 2
            [name] => Type 2
            [rate] => 75.00
        )

    [2] => stdClass Object
        (
            [id] => 3
            [name] => Type 3
            [rate] => 50.00
        )

    [3] => stdClass Object
        (
            [id] => 4
            [name] => Type 4
            [rate] => 50.00
        )
)

2：

Array
(
    [0] => stdClass Object
        (
            [name] => Type 1
            [rate] => 125
        )

    [1] => stdClass Object
        (
            [name] => Type 2
            [rate] => 85
        )

    [2] => stdClass Object
        (
            [name] => Type 3
            [rate] => 65
        )

)

我需要做的是比较两个数组，并将第一个数组中缺少的项追加到第二个数组。这将始终是第一个阵列将具有比第二个阵列更多的项目的情况。

我尝试过使用类似的东西：

$result = array_udiff($array1,$array2,
 function ($obj_a, $obj_b) {
    return $obj_a->name - $obj_b->name;
  }
);

但它只返回一个空数组

Answer 1

此？

<?php

    $arr1 = array(
        (object)array("id"=>1,"name"=>"type 1","rate"=>100.00),
        (object)array("id"=>2,"name"=>"type 2","rate"=>75.00),
        (object)array("id"=>3,"name"=>"type 3","rate"=>50.00),
        (object)array("id"=>4,"name"=>"type 4","rate"=>50.00)
        );

    $arr2 = array(
        (object)array("name"=>"type 1","rate"=>125),
        (object)array("name"=>"type 2","rate"=>85),
        (object)array("name"=>"type 3","rate"=>65)
        );


    for($i=0;$i<sizeof($arr1);$i++){

        $count=0;
        for($j=0;$j<sizeof($arr2);$j++){

            if($arr1[$i]->name == $arr2[$j]->name){

                $count++;
            }
        }

        if($count==0){

            array_push($arr2,(object)array("name"=>$arr1[$i]->name,"rate"=>$arr1[$i]->rate));
        }
    }

    print_r($arr2);
?>

Answer 2

不需要复杂，假设您允许数组包含相同类型和结构的对象。我们没有足够的上下文来解释是否有充分的理由你不能理解。

//$array1 original array
//$array2 target array

$array2 = array_merge($array1, $array2);

php，比较数组并附加差异

2 个答案: