change request parameter values laravel code example

Example 1: laravel get parameters from request

request()->all() // All parameters
request()->get('param') // One parameter
request()->only('param1', 'param2') // Specific parameters

Example 2: how get some parameter from request in laravel

$data = $request->only(
            'project_name',
            'project_code',
            'block_count',
            'unit_count',
            'contractor_name',
   );