implementing PHP 8.1 and Laravel Eloquent Relationships Returning Null Values
I'm working with a perplexing scenario with Laravel 9 while using PHP 8.1 where my Eloquent relationships are returning null unexpectedly. I've defined a `User` model that has a one-to-many relationship with a `Post` model. Despite the relationship being set up correctly, fetching posts for a user sometimes returns null, even though there are posts in the database. Here’s a snippet of my models: ```php // User.php class User extends Model { public function posts() { return $this->hasMany(Post::class); } } // Post.php class Post extends Model { public function user() { return $this->belongsTo(User::class); } } ``` In my controller, I fetch a user and their posts like this: ```php $user = User::find($userId); $posts = $user->posts; ``` While testing, I noticed that for some user IDs, `$posts` is null, and I double-checked that those users indeed have associated posts in the database. When I run a raw query to count the posts for those users, the count returns as expected: ```sql SELECT COUNT(*) FROM posts WHERE user_id = ?; ``` I’ve also checked to ensure that the `user_id` in the `posts` table matches the correct `id` in the `users` table. I ran into this question after upgrading to PHP 8.1 and Laravel 9 from an earlier version. I tried adding the `with` method to eager load posts: ```php $user = User::with('posts')->find($userId); ``` But it still results in `$user->posts` being null for certain users. I’ve cleared the cache and checked the database connections, but the scenario continues. Has anyone experienced similar behavior, or does anyone know if there are specific configurations or changes in PHP 8.1 or Laravel 9 that might be affecting Eloquent relationships? This is part of a larger microservice I'm building.