I'd like my WordPress menu to highlight the category when a single post is displayed.

This example from the WordPress codex properly applies the class of "current" in category view, but does not apply the class (although it should) when switching to single-post view:

<li<?php if ( is_category('10') || in_category('10') && !is_single())
 { echo ' class="current"'; } ?>><a href="/?cat=10">My Category</a></li>

Any thoughts?

Thanks.

I don't know much about wordpress, but common sense leads me to believe that "&& !is_single()" interfere with what you're trying to achieve.

Originally Posted by Mad182

I don't know much about wordpress, but common sense leads me to believe that "&& !is_single()" interfere with what you're trying to achieve.

The thing is, that example is derived directly from WordPress's own documentation.

To clarify, the is_single tag calls a template that displays single posts, is_category calls the template that displays category pages and in_category refers to a specific category.

So, the argument should first look to see if you're on a category page, then look to see if you're viewing a single post, then apply a class of "current" to the appropriate category.

PHP Code:

in_category('10') && !is_single() 


It says "if in category 10 and is not single page". Try to remove "!" from is_single()...

Originally Posted by Mad182

PHP Code:

in_category('10') && !is_single() 


It says "if in category 10 and is not single page". Try to remove "!" from is_single()...

Mad182, thank you for your awesomeness. That did it.