php 如何在集合 Laravel 中添加新值？
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How to add new value in collection laravel?
提问by MisterPi
I have the following loop where I try to add a new value:
我有以下循环，我尝试添加新值：
foreach ($pro->sig()->get() as $key => $sig) {
$sig->val = 2;
}
When I print the output of $pro->sig()I don't have the new value $sig->val
当我打印输出时，$pro->sig()我没有新值$sig->val
回答by Christian Giupponi
If you have a collection you can use pushor putmethod.
如果你有一个集合，你可以使用push或put方法。
Example with put:
放置示例：
$collection = collect(['product_id' => 1, 'name' => 'Desk']);
$collection->put('test', 'test');
$collection->all();
The output will be:
输出将是：
['product_id' => 1, 'name' => 'Desk', 'test' => 'test']
Example with push:
推送示例：
$collection = collect([1, 2, 3, 4]);
$collection->push(5);
$collection->all();
Output:
输出：
[1, 2, 3, 4, 5]
Reference: https://laravel.com/docs/5.3/collections#method-push
参考：https: //laravel.com/docs/5.3/collections#method-push
updateReference for 5.8: https://laravel.com/docs/5.8/collections#method-push
5.8 的更新参考：https: //laravel.com/docs/5.8/collections#method-push
回答by suguna
In my example, I tried like the below
在我的例子中，我尝试如下
foreach ($user->emails as $key => $email) {
$email->test = "test";
}
return $user->emails;
It outputs like,
它输出像，
{
"id": 76,
"user_id": 5,
"additional_email": "[email protected]",
"test": "test"
}
Please try like this.
请尝试这样。
