Fatal error: Uncaught Error: Call to undefined function App\Controllers\is_brand_search_query() in /var/www/html/app/Controllers/SearchController.php:87 Stack trace: #0 /var/www/html/app/Router.php(54): App\Controllers\SearchController->index() #1 /var/www/html/public/index.php(123): App\Router->dispatch('/search?docs_re...', 'GET') #2 {main} thrown in /var/www/html/app/Controllers/SearchController.php on line 87