WordPress: Build valid query string from parameter array

Question

On my site, the following array parameters will work fine through the WordPress query_posts() function in an ajax request:

 $arr_params= array
    (
     'post_type'=>'university',
      'tax_query' => array(
         array(
        'taxonomy' => 'uni',
        'field' => 'slug',
        'terms' => 'stanford'
        )
        )

    );

However is it possible to build a link using these arguments? I want to display a link on my posts, which when clicked, re-loads the WordPress loop using the above parameters.

I've tried

add_query_arg($arr_params,get_permalink());

but have not had any success

What is the finished URL supposed to look like? Your $arr_params has a couple of sub-arrays, and I can't figure out what correct query string ought to be. — andrewsi
– andrewsi, Commented Nov 4, 2013 at 19:12
I actually don't know what it should be. I was hoping it could be created magically, but I don't think get_permalink can handle the tax_query — gray
– gray, Commented Nov 4, 2013 at 19:19
You might be able to reverse engineer what the query would need to be, to get that array, but yes, I think it might be a little too complex for add_query_arg to do all the work. — andrewsi
– andrewsi, Commented Nov 4, 2013 at 19:21
thanks, just took a little experimentation and I got it pretty quickly...shame I posted the question, but maybe it will help somebody else — gray
– gray, Commented Nov 4, 2013 at 19:44
Could you add what you did as an answer? You can accept it when you get change, but I'm curious to see what you did! — andrewsi
– andrewsi, Commented Nov 4, 2013 at 19:46

gray · Accepted Answer · 2013-11-04 19:48:20Z

1

The add_query_arg function does not take a taxonomy query as seen in the question. The following array produced the result I wanted:

   $arr_params= array
    (
     'post_type'=>'university',
     'taxonomy' => 'uni',
     'terms' => 'stanford'
    );


echo add_query_arg($arr_params);

This is what it returns:

/?post_type=university&taxonomy=uni&terms=stanford

answered Nov 4, 2013 at 19:48

gray

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1 Comment

gray Over a year ago

yea I was kicking myself that I wrote a whole question before attempting that

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