Tag: Undefined constant problem in laravel
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How to solve this after update laravel 8 to 9 Undefined constant Illuminate\Http\Request::HEADER_X_FORWARDED_ALL
Read More: How to solve this after update laravel 8 to 9 Undefined constant Illuminate\Http\Request::HEADER_X_FORWARDED_ALLWhen upgrading from Laravel 8 to Laravel 9, the constant Illuminate\Http\Request::HEADER_X_FORWARDED_ALL was removed because it was never officially defined in Laravel. This was a…