Pressing Submit Button on Post Form Only Reloads the Page - php

Question

I need to post values from an HTML form but every time I press the submit button the page reloads, and that's it. I've checked the routes and controller, and everything seems fine to me.
Blade
<div class="panel-body">
#if (session('status'))
<div class="alert alert-success">
{{ session('status') }}
</div>
#endif
#foreach($users as $users)
#if(session("admin")==0)
Meno: {{$users["name"]}} Email: {{$users["email"]}}
Registrovaný: {{$users["created_at"]}}
#endif
#if(session("admin")==1 AND $users["admin"]==0)
<form action="/promote" method="POST">
Meno: {{$users["name"]}} Email: {{$users["email"]}}
Registrovaný: {{$users["created_at"]}}
<input type="hidden" name="id" value="{{$users["id"]}}">
<button type="submit" class="w3-button w3-green">Promote</button>
</form>#endif
#if(session("admin")==1 AND $users["admin"]==1)
<form action="/demote" method="POST">
Meno: {{$users["name"]}} Email: {{$users["email"]}}
Registrovaný: {{$users["created_at"]}}
<input type="hidden" name="id" value="{{$users["id"]}}">
<button type="submit" class="w3-button w3-red">Demote</button>
</form>#endif
<br>
#endforeach
</div>
Routes
Route::post('/promote', 'users_controller#promote')->middleware('auth');
Route::post('/demote', 'users_controller#demote')->middleware('auth');
Controller
public function promote(Request $req)
{
$id = $req->input('id');
DB::table('users')->where("id", $id)->update(["admin" => 1]);
return redirect()->back();
}
public function demote(Request $req)
{
$id = $req->input('id');
DB::table('users')->where("id", $id)->update(["admin" => 0]);
return redirect()->back();
}
I want to change the database value on column "admin" on a row with the id posted in a hidden input. Now it doesn't do anything but reload the page.

Answer 1

You are missing the CSRF token, to solve this you should put #csrf inside your form tag, like:
<form action="/demote" method="POST">
#csrf
Meno: {{$users["name"]}} Email: {{$users["email"]}}
Registrovaný: {{$users["created_at"]}}
<input type="hidden" name="id" value="{{$users["id"]}}">
<button type="submit" class="w3-button w3-red">Demote</button>
</form>
For more info check the docs

Answer 2

To submit the form you would most likely need to use <input type="submit" value="Submit"> instead off <button type="submit" class="w3-button w3-red">Demote</button>.
This has caused issues for me before using plain HTML and PHP, give it a try.