Transform Eloquent Attributes with Accessors and Mutators

// In your User model
class User extends Model
{
    /**
     * Get the user's full name.
     *
     * @return \Illuminate\Database\Eloquent\Casts\Attribute
     */
    protected function fullName(): Attribute
    {
        return Attribute::make(
            get: fn (mixed $value, array $attributes) => $attributes['first_name'] . ' ' . $attributes['last_name'],
            set: fn (string $value) => [
                'first_name' => explode(' ', $value)[0],
                'last_name' => explode(' ', $value)[1] ?? '',
            ],
        );
    }

    /**
     * Get the user's first name. (Old style accessor for comparison)
     *
     * @param  string  $value
     * @return string
     */
    // public function getFirstNameAttribute($value)
    // {
    //     return ucfirst($value);
    // }

    /**
     * Set the user's password. (Old style mutator for comparison)
     *
     * @param  string  $value
     * @return void
     */
    // public function setPasswordAttribute($value)
    // {
    //     $this->attributes['password'] = bcrypt($value);
    // }
}

// Usage:
$user = User::find(1);
echo $user->full_name; // Accesses the fullName accessor

$user->full_name = 'John Doe'; // Uses the fullName mutator
$user->save();
// $user->first_name is now 'John', $user->last_name is 'Doe'