I don't know how to turn some WP QUERY parameters into url query strings. Most of them are straight forward, but there are some I don't know how to get working. For example, for these WP_QUERY parameters:

$args = array(
    'post_type' => 'post',
    's' => 'keyword',

the query string for this is: ?s=keyword&post_type=post

What is the query string for the 'after' parameter with value '24 hours ago'. For example, this WP_QUERY gets posts created in the last 24 hours:

$args = array(
    'date_query' => array(
            'after'  => '24 hours ago',

But I don't know the query string for it. This doesn't work:


Any help appreciated.


PHP function http_build_query(); would return different string for this array. It won't remain readable like an array but, I believe, it will work as parameter to WP_Query.

build_query is the WordPress equivalent for the same functionality.

Turns out that build_query is a bit different from http_build_query.

http_build_query returned date_query%5B0%5D%5Bafter%5D=24+hours+ago and build_query returned date_query%5B0%5D%5Bafter%5D=24 hours ago. I guess, later would work for WP_Query.

  • 1
    Thanks for your help. I just tried them but they don't work either. All the other date parameters inside the 'date_query' work just by adding year=value&month=value&w=value&day=value&hour=value. As stated here: codex.wordpress.org/Class_Reference/WP_Query#Date_Parameters. I thought just by using after=value and before=value would work too but they don't. – Andy Oct 20 '16 at 23:49

The codex says you can use any strtotime() compatible string so you could use:

'after' => '-24 hours'

  • Thanks for your help. I need it to be a URL query string, not as an array. in the form of ?key=value&key=value. If you visite codex.wordpress.org/Class_Reference/WP_Query#Date_Parameters and scroll down to where it says 'Returns posts for today' it shows how to write it. year=value&monthnum=value&day=value all work. But after=value doesn't work. – Andy Oct 20 '16 at 23:55

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