In Magento if I have a URL string, is there any built in function that I can use to add query parameters to it?

In the exact case I am looking at I am generating a category URL and then I want to add a set of query parameters on top of it.

I am doing the following:

$categoryUrl = Mage::getModel('catalog/category')->load(1)->getUrl();

I want to then add the following query parameters:

array('param1' => 'myparam1','param2' => 'myparam2');

I then want to end up with:

  • Can you give an example of what you are trying to obtain? How are you generating the category url and what is the desired result? – Marius Jun 21 '13 at 11:36
  • Updated question to reflect this – Marty Wallace Jun 21 '13 at 11:43

I don't think there is a 'built in' way to achieve this.
The method Mage_Catalog_Model_Url::getUrl() does not accept any parameters. You can override the method, but unless you need something like this for all categories I don't see a point on doing it.
I think the cheapest way is to add the parameters directly.

$params = array('param1' => 'myparam1','param2' => 'myparam2');
$categoryUrl = Mage::getModel('catalog/category')->load(1)->getUrl();
$urlParams = array();
foreach ($params as $name=>$value){
    $urlParams[] = $name.'='.urlencode($value);
$urlParams = implode('&', $urlParams);
if ($urlParams){
    $glue = '?';
    if (strpos($categoryUrl, $glue) !== false){//this should never happen - but just in case
        $glue = '&';
    $categoryUrl .= $glue.$urlParams;

You can make this a method in a helper to avoid writing the code each time you need it.

For any other url that you construct through Mage::getUrl() you can pass query params like this:

$url = Mage::getUrl('module/controller/action', array('param1'=>'val1', '_query'=>array('p1'=>'v1', 'p2'=>'v2')));

the code above will generate the following:


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  • @Simon...when downvoting, give a reason. – Marius Jul 6 '14 at 19:43
  • sorry, was a bit too fast - did not like the first code block, because there is a built-in way to achieve this, but you also show that way, so all good. – Simon Jul 9 '14 at 6:52
  • ... and now I cannot change my vote any more (which I dislike a lot at all SE sites). Anyway, I think it is quite strange that you can see who downvoted your answer :/ – Simon Jul 9 '14 at 6:53
  • @Simon. I think I was a bit wrong on this one. See what benmarks wrote in an other answer. So your down vote had a good reason. I just stated that you should give a reason when downvoting. And rest assured, you cannot see who downvoted answers on SO. I just investigated a bit. Because this website does not have a huge amount of votes and users it's kind of easy to find out who downvoted. I will not tell you how I found out, but all I can say is that it's kind of easy to see who downvoted on Sundays and Mondays. :). – Marius Jul 9 '14 at 6:56
  • LOL okay :) Yeah, I think Bens answer should have been the accepted one on this question. Anyway, thanks and keep up the good work! – Simon Jul 9 '14 at 7:00
echo Mage::getUrl('',
        '_direct' => Mage::getModel('core/url_rewrite')->loadByIdPath('category/1')->getRequestPath(),
        '_query' => array('param1' => 'myparam1','param2' => 'myparam2')
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  • 2
    This is the real answer. – JamesHalsall Nov 1 '15 at 19:30
  • I don't think that there is a best answer to this, as passing params in a URL is not specific to Magento, although Magento contains a method for it. – Tyler Maginnis Jan 11 '16 at 14:09
  • 1
    @TylerMaginnis "is there any built in function [in Magento] that I can use to add query parameters [to a URL string]?" – benmarks Jan 11 '16 at 16:56

You can use core/url helper:

$params = array('param1' => 'myparam1', 'param2' => 'myparam2');
$newCategoryUrl = Mage::helper('core/url')->addRequestParam($categoryUrl, $params);
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