php - ArgumentCountError Too few arguments to function Laravel unable to pull data from db and display

one text

Solution:

This function request $id;

public function manage_students($id)

This route doesn't pass one

Route::get('admin/manage_students', 'AdminController@manage_students');

As I can see you are filtering by results which in this case you need $result id

Route::get('admin/manage_student/{id}', 'AdminController@manage_students');

So you have to pass result ID, but lets assume there is a default results id

public function manage_students($id=2)

then this route works because $id is optional/predefined. Route::get('admin/manage_students', 'AdminController@manage_students');

And if you pass an ID it will use

Route::get('admin/manage_student/{id}', 'AdminController@manage_students');

Make 2 routes and make parameter optional/predefined.

if you go to /admin/manage_student it will use ID 2 but if you pass /admin/manage_student/5 it will use 5