CODEWITHSUNDEEP
php
Kmars
Kmars

Reputation: 33

Using the $_GET variable

I need a little help with using $_GET variables if possible. Right now I am using them to load different parts of my website when needed but I can't figure out how to clear the screen as if a new page were being loaded when the $_GET variable is set. I was wondering if it is possibele.

As an example say I have a sports categories page which lists all the sport available on the website, In the controller I have this piece of code which activates when the user clicks on football in the list of sports:

if (isset($_GET['football'])) 
        {  
            .... 
        }

So at the moment all of the football information is displayed along with all of the category information. Is there a way to remove the category information and just have the sports info there without using javascript?

Any pointers in the right direction would be really appreciated.

Thank You

Upvotes: 0

Views: 86

Answers (4)

prc
prc

Reputation: 860

Assuming that when the user clicks "Football" a new HTTP request is done, then you can have:

if(!isset($_GET["football"])) ... { // Code to display categories }

If you don't have another HTTP request, then you will have to do it with Javascript, hidding the element that contains the category list.

Hope this helps...

Upvotes: 0

Steve
Steve

Reputation: 20469

Instead of using the querystring key to differentiate, use a common key (in my example category ) and change the value, eg http://example.com/page.php?category=football.

Then you can perform a switch on the value, and show either the category content, or the list of categories if no specific category is requested:

$category = isset($_GET['category']) ? $_GET['category'] : 'none';

switch($castegory){
    case 'football':
        //show football content
        break;
    case 'golf':
        //show golf content
        break;
    default:
       //show list of categories
}

Upvotes: 1

Heatmanofurioso
Heatmanofurioso

Reputation: 1028

The $_GET method is usually used to retrieve variables from a webpage's URL. Although it could be populated in other ways i believe. To clean it just unset it. Like so:

unset($_GET["football"]);

Also, if you are using it to retrieve data from you URL you can just refresh the page without the variables on it like so Original URL: www.stackoverflow.com?id=10 Refresh it as empty www.stackoverflow.com

With those 2 methods, you should be able to clear your gets from any data. Use accordingly to your situation.

Upvotes: 1

Evert
Evert

Reputation: 99525

I think what you are looking for is an else statement. Or otherwise, you need to write your code in such a way that categories are only displayed if $_GET['football'] is not set.

Upvotes: 0

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