How to get the value of foreign key in laravel?

@herminia_bruen 

In Laravel, you can retrieve the value of a foreign key by using the relationships defined in your models.

For example, if you have a Post model that belongs to a User model, you can access the user's id (foreign key) for a post like this:

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$user_id = $post->user_id;

You can also use the relationship method to retrieve the related User model and then access the id value:

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$user_id = $post->user->id;

Make sure you have defined the relationships in your models correctly to access the foreign keys easily.