How to add custom error in Laravel?

Question

How to call custmo error in controller, that after to show in template?

For example, I have condition:

if($id == 500){
   // call error
}

Answer 1

If you want to call just the error in the controller and abort, you do

abort(500, 'Internal error');

If you want to return an error

return redirect()->back()->withErrors(['error' => 'was 500']);

Answer 2

You can do this by catching the error in the Handler ( app/Exceptions/Handler.php ), something like this:

public function render($request, Exception $e){

    // other errors here by your wish

    // custom error message
    if ($e instanceof \ErrorException) {
        return response()->view('errors.500', [], 500);
    }else{
        return parent::render($request, $e);
    }
    return parent::render($request, $e);
}

Note that you need 500 template in resources/views/errors/500.blade.php (create if it doesnt exist, and fill if with your data or iformation about the exception)