PHP在数组中循环并附加到对象

我有一系列这样的物体

Array
(
    [0] => stdClass Object
        (
            [Job] => stdClass Object
                (
                    [ID] => 123
                    [Name] => Foo
                 )
        )
    [1] => stdClass Object
        (
            [Job] => stdClass Object
                (
                    [ID] => 456
                    [Name] => BAR
                 )
        )
)

我需要循环遍历数组，并向对象添加一些附加信息，如“Status”，但我遇到了一些问题

foreach($arrJobs as $key => $val) {

  $arrJobs[$key]->Job->Status = new StdClass;
  $arrJobs[$key]->Job->Status = $myStatus;

}

这似乎有效，但我得到以下警告

警告：正在从中的空值创建默认对象

---

是的，首先创建一个对象。不能分配

null

的属性。这就是为什么需要php的泛型空类

stdClass

的实例

$arrJobs[$key] = new stdClass;
$arrJobs[$key]->foo = 1;

// And/or see below for 'nested' ...
$arrJobs[$key]->bar = new stdClass;
$arrJobs[$key]->bar->foo = 1;

for（$i=0；$iJob->Status=新stdClass；
//其他业务
}

根据我对您的理解，您只需要将属性附加到现有对象不要在循环中创建新对象

你只需要这个

foreach ($arrJobs as $obj)
{
    $obj->job->status = $myStatus;
}

请参阅完整代码：

<?php
$obj1 = new \stdClass();
$obj1->job = new \stdClass();
$obj1->job->id = 123;
$obj1->job->name = "foo";

$obj2 = new \stdClass();
$obj2->job = new \stdClass();
$obj2->job->id = 456;
$obj2->job->name = "bar";

$array = [$obj1,$obj2];

var_dump($array);
foreach ($array as $obj)
{
    $obj->job->status = "the status";
    //add any properties as you like dynamicly here
}
echo "<br>\nafter<br>\n";
var_dump($array);
exit;

试试这个

PHP

<?php
    // Sample object creation.
    $array = [];
    $array = [0 => (object) ['Job'=>(object) ['ID'=>123, 'Name' => 'Foo']]];

    foreach($array as $val) {
        $val->Job->Status = (object) ['zero' => 0,'one' => 1]; // Status 0 and 1.
    }

    echo "<pre>";
    print_r($array);
?>

没有发出警告。你能把你的例子更新成一个真实再现问题的例子吗？非常感谢，我相信这是对我的问题最清晰、清楚和全面的回答。
<?php
    // Sample object creation.
    $array = [];
    $array = [0 => (object) ['Job'=>(object) ['ID'=>123, 'Name' => 'Foo']]];

    foreach($array as $val) {
        $val->Job->Status = (object) ['zero' => 0,'one' => 1]; // Status 0 and 1.
    }

    echo "<pre>";
    print_r($array);
?>

Array
(
    [0] => stdClass Object
        (
            [Job] => stdClass Object
                (
                    [ID] => 123
                    [Name] => Foo
                    [Status] => stdClass Object
                        (
                            [zero] => 0
                            [one] => 1
                        )

                )

        )

)