PHP如何合并一个对象数组和一个数组的数组 - PHP How To Merge An Array Of Objects WIth An Array Of Arrays

PHP How To Merge An Array Of Objects WIth An Array Of Arrays

首先，很抱歉这么长时间的解释。PHP中有两个数组。第一个数组是一个对象数组。第二个数组是数组的数组。基本上，我想循环遍历对象，并将其与匹配的数组合并，并返回合并后的对象。

参见下面的对象数组结构的print_r():

Array
(
[0] => stdClass Object
    (
        [gear] => helloworld
        [status] => running
        [started] => 40 Minutes Ago
        [start] => index.js
        [route] => 127.0.0.1:3000
        [parameters] => Array
            (
            )
    )
[1] => stdClass Object
    (
        [gear] => test
        [status] => stopped
        [started] => 
        [start] => index.js
        [route] => 
        [parameters] => Array
            (
            )
    )
[2] => stdClass Object
    (
        [gear] => test2
        [status] => stopped
        [started] => 
        [start] => index.js
        [route] => 
        [parameters] => Array
            (
                [0] => first
                [1] => second
                [2] => third
            )
    )
)

参见下面的数组结构的数组的print_r():

Array
(
[0] => Array
    (
        [gear] => helloworld
        [machine_id] => E6z5ekvQ
        [created_by] => 10010
        [modified_by] => 10010
        [created] => 2011-09-22T16:30:11-07:00
        [modified] => 2011-09-22T16:30:11-07:00
    )
[1] => Array
    (
        [gear] => test
        [machine_id] => E6z5ekvQ
        [created_by] => 10010
        [modified_by] => 10010
        [created] => 2011-09-22T16:44:25-07:00
        [modified] => 2011-09-22T16:44:25-07:00
    )
[2] => Array
    (
        [gear] => test2
        [machine_id] => E6z5ekvQ
        [created_by] => 10010
        [modified_by] => 10010
        [created] => 2011-09-22T16:45:43-07:00
        [modified] => 2011-09-22T16:45:43-07:00
    )
)

所以基本上两者的匹配键是gear。因此，我们应该将第一个对象中的齿轮与数组中的第二个齿轮进行匹配，并返回如下内容:

stdClass Object
    (
        [gear] => helloworld
        [status] => running
        [started] => 40 Minutes Ago
        [start] => index.js
        [route] => 127.0.0.1:3000
        [parameters] => Array
            (
            )
        [machine_id] => E6z5ekvQ
        [created_by] => 10010
        [modified_by] => 10010
        [created] => 2011-09-22T16:30:11-07:00
        [modified] => 2011-09-22T16:30:11-07:00
    )

注意，齿轮被合并到对象的一个属性中，显然齿轮不会出现两次。想法吗?

如果您可以通过gear或一些唯一值对数组进行索引，则会容易得多。

$indexed = array();
// create an array using 'gear' as the index
foreach($arrayValue as $value) {
    $indexed[$value['gear']] = $value;
}
// loop over each object
foreach($objectArray as $obj) {
    $value = $indexed[$obj->gear]; // find the corresponding array
    foreach($value as $name => $val) {
        $obj->$name = $val; // assign each array index/value pair to the object
    }
}

如果可能的话，你的代码在默认情况下返回索引数组，你可以删除第一个foreach循环。

希望对你有帮助。