[wp-hackers] Resetting after multiple loops

Viper007Bond viper at viper007bond.com
Fri Oct 24 13:46:32 GMT 2008

Always use code like this if possible:

$var_name_other_than_posts = get_posts( 'some=parameters' );

foreach ( $var_name_other_than_posts as $post ) {
// do stuff

That way you never touch the query. Infact get_posts() now internally uses
query_posts() or whatever so there is very, very little you can't do with


On Fri, Oct 24, 2008 at 1:40 AM, Nigel Dunn <nigel at redefine.co.uk> wrote:

> Hi all,
> I've been writing a number of widgets based on the style of the recent
> posts widget that comes with WP - e.g. listing the most recent posts by an
> author, for a category, etc. But I've come unstuck with side-effects on
> other globals even though I'm using what seems to be the suggested pattern
> of using 'new WP_Query(...)' followed by wp_reset_query().
> I think the problem is caused by the_post(), but I can't see anything
> documented about resetting globals after you've used that.
> If you try the following on a fresh install of WP:
> * create a new post
> * add the recent posts widget to the sidebar
> * change sidebar.php in the default theme to display the value of $id
> before & after the sidebar contents
> * change single.php in the default theme to  use the sidebar
> When I view the new post on the website I have different values for $id. If
> I comment out the loop that's used in the widget then they're the same. If I
> stick something like 'if (have_posts()) the_post()' at the end of the
> sidebar then I also get the same values.
> So the sort of problem I've been having is that if I have another widget
> that's supposed to display the details of the post author then it could
> change if I place that before or after the recent posts widget.
> Is this a bug or am I missing out on something else? (And should I be
> posting this elsewhere?)
> Best wishes
> Nigel
> --
> Nigel Dunn
> Redefine
> 0845 838 2720
> http://www.redefine.co.uk
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