如何绕过CodeIgniter中不允许的关键字符

Question

I have this problem in finding a solutions in Disallowed Key Characters in CodeIgniter. My problem is, I want that the £ sign will be passed in through my url.

For example,

• I have this product testing-product-nutella .
• I want to add a £ sign besides testing-product-nutella£ somewhat like that. here is my code below

//---------------------------------------------------------------------------------// //--------------------------> Build the product list data--------------------------// //---------------------------------------------------------------------------------//

        $prod_list              = Array();

        foreach($prods_query as $prod)
        {
            //echo htmlentities($prod['prod_name']);
            //print_r($prod);

            //$prod_name_url        = Make_into_url($prod['prod_name']);
            $prod_name_url      = htmlentities($prod['prod_name']);
            print_r($prod_name_url);

            // get the minimum order quantity and price from db
            if ($min_price = $this->Price_model->Get_listing_price($prod['prod_id']))
            {
                $min_order_qty      = $min_price['qty_value'];
                $min_order_price    = $min_price['price_amount'] > 0 ? number_format($min_price['price_amount'], 2) : false;
            }
            else
            {
                // this shouldn't happen but just in case...
                $min_order_qty      = "";
                $min_order_price    = "";
            }

            // get the default image for the product from the database
            $default_pic_row        = $this->Picture_model->Get_default_product_picture($prod['prod_id']);

            // get a list of all the special categories that a product is in
            $product_spec_cats      = $this->Special_category_model->Get_product_special_cats($prod['prod_id']);

            // is the product on special offer, if so, get the details
            $product_spec_off       = $this->Special_offer_model->Get_product_special_offer_details($prod['prod_id']);



            $nameUrl = urlencode($prod_name_url);
            echo "<pre>";
            echo $nameUrl;
            echo "</pre>";

            $prod_list[]            = Array(
                                            "prod_id"           => $prod['prod_id']
                                            ,"prod_name"        => urldecode($nameUrl)
                                            ,"prod_min_price"   => $min_order_price
                                            ,"prod_min_qty"     => $min_order_qty
                                            ,"prod_desc"        => $prod['prod_desc']
                                            ,"prod_code"        => $prod['prod_code']
                                            ,"prod_pic_thumb"   => $default_pic_row['pic_thumb']
                                            ,"product_colours_image"    => ""
                                            ,"prod_spec_cats"   => $product_spec_cats
                                            ,"prod_spec_off"    => $product_spec_off
                                            );
        }

When I tried to add a £ sign it says Disallowed Key Characters. I want that when I add a special characters and passed in the url the product will display by having the special characters.

I tried to see the files in system/libraries/Input.php file and tried to change a lil bit on the code in function _clean_input_keys but it didnt work. Can someone help me figured this thing out? Any help is muchly appreciated.

TIA

Answer 1

You have to url encode the pound sign. Build your url string and then pass it to the php urlencode($url) function which will convert it into allowed characters: "%a3" for a "£"

To retrieve it use urldecode($url)