Codeigniter路由問題。調用不同的控制器功能取決於傳遞參數

Question

所以，這是我的控制器：

class Catalog extends CI_Controller { 

    function index() 
    { 
     echo "Catalog"; 
    } 

    function view_category($category_slug) 
    { 
     echo "category_slug = ".$category_slug; 
    } 

    function view_brand($category_slug, $brand_slug) 
    { 
     echo "category_slug = ".$category_slug; 
     echo "<br>"; 
     echo "brand_slug = ".$brand_slug; 
    } 

    function view_product($category_slug, $brand_slug, $product_slug) 
    { 
     echo "category_slug = ".$category_slug; 
     echo "<br>"; 
     echo "brand_slug = ".$brand_slug; 
     echo "<br>"; 
     echo "product_slug = ".$product_slug; 
    } 
} 

這是我的routes.php文件：

$route['catalog/(:any)'] = 'catalog/view_category/$1'; 
$route['catalog/(:any)/(:any)'] = 'catalog/view_brand/$1/$2'; 
$route['catalog/(:any)/(:any)/(:any)'] = 'catalog/view_product/$1/$2/$3'; 

不過沒關係我有多少參數傳遞 - 它總是調用view_category函數。爲什麼？

由於

Answer 1

由於強制部分（即控制器名稱）它不會工作是相同的所有3路，並之後catalog/任何數量的參數將滿足的第一路線。

解決方案可以（未經測試）按照以下順序顛倒您的路線順序（即降序排列的參數數量）。檢查它是否可行 -

$route['catalog/(:any)/(:any)/(:any)'] = 'catalog/view_product/$1/$2/$3'; 
$route['catalog/(:any)/(:any)'] = 'catalog/view_brand/$1/$2'; 
$route['catalog/(:any)'] = 'catalog/view_category/$1';