php-laravelHow do I set up a foreign key relationship in Laravel using PHP?

A foreign key relationship in Laravel can be set up using PHP by defining the relationship in the model class.

For example, to set up a foreign key relationship between a User and Post model, the following code can be used:

<?php

namespace App;

use Illuminate\Database\Eloquent\Model;

class Post extends Model
{
    public function user()
    {
        return $this->belongsTo('App\User');
    }
}

In this example, the belongsTo method is used to define the foreign key relationship between the Post and User models.

Code explanation

1. namespace App; - this defines the namespace of the model class.
2. use Illuminate\Database\Eloquent\Model; - this imports the Model class from the Illuminate\Database\Eloquent namespace.
3. public function user() - this defines the foreign key relationship between the Post and User models.
4. return $this->belongsTo('App\User'); - this specifies the foreign key relationship between the Post and User models.

Helpful links

• Laravel Documentation - Eloquent Relationships
• Laravel Documentation - Defining Relationships

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