Sometimes you might get an undefined variable error in your Laravel 9 project, especially when you try to use it in a view file from a controller. There might be a few possible solutions.
Before we continue to coding examples, the error might just be caused by a spelling mistake.
So, first point:
Make sure that the spelling of the variable is the same in your controller and view.
Now, lets use the code snippet below as an example:
public function index()
{
$title = "Wecode101";
return view ('pages.index');
}
To pass variable to view, don't do this:
public function index()
{
$title = "Wecode101";
return view ('pages.index', $title);
}
Do this:
public function index()
{
$title = "Wecode101";
return view ('pages.index', compact('title'));
}
Or this:
public function index()
{
$title = "Wecode101";
return view ('pages.index', ['posts' => $posts]);
}