Handle Dynamic Routes with Parameters and Constraints

To handle dynamic routes with parameters and add constraints to ensure they meet specific requirements.

// Define a route with a dynamic parameter and constraint
Route::get('user/{id}', [UserController::class, 'show'])
    ->where('id', '[0-9]+');

Route::get('user/{id}', [UserController::class, 'show']): Defines a route with a dynamic parameter {id}. The value of {id} will be passed to the show method in UserController.

->where('id', '[0-9]+'): Adds a constraint to the {id} parameter, allowing only numeric values. This ensures that the id is always a number.

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