Laravel将雄辩的实例更改为生成器实例

Question

At least it seems to be doing that.

First I retrieve multiple models:

$ConfirmedCards = JobCardHead::where('Status', '=', 'Confirmed')->get(); 

Then I use a for each loop to work on each model:

foreach ($ConfirmedCards as $card) {
...
}

Now each $card is a collection right? Laravel says that an eloquent model is extends the collection class and if I do,

foreach ($ConfirmedCards as $card) {
    echo $card
}

I get the data in what definitely looks like a collection. But if I attempt to use the collection method put(), like this

foreach ($ConfirmedCards as $card) {
    $card -> put('StartDate', 'someDate');
}

I get an error saying that I am trying to call put() on a query\\Builder instance, How is $card a builder instance?

Please Help. Thank you

Answer 1

Your $card variable is not a collection but an object extending Illuminate\\Database\\Eloquent\\Model class. When you try to echo this object, you're seeing it serialized to JSON .