Classes

Name resolution

Do not use hardcoded fully qualified class names in code. Instead, resolve them via the ClassName::class keyword.

// GOOD
use App\Models\Order;
echo Order::class;

// BAD
echo 'App\Models\Order';

Self keyword

Use the class name instead of the self keyword for return type hints and when creating an instance of the class.

// GOOD
public function createFromName(string $name): Tag
{
    $tag = new Tag();
    $tag->name = $name;

    return $tag;
}

// BAD
public function createFromName(string $name): self
{
    $tag = new self();
    $tag->name = $name;

    return $tag;
}

return self / new self() vs return ClassName / new ClassName() — we can use both, but it is better to be consistent.