There’s a big difference… most of the times. is_home(), just like any other conditional tag, check main query. $query->condition() check the query object that is passed by action, that can be a a completely different query, because pre_get_posts is called for all queries. As example, let’s assume you are viewing a singular post, and inside … Read more
Suppose you have set up an array of page IDs where you don’t want the breadcrumbs to be displayed. $ids = array( 4, 8, 15, 16, 23, 42 ); Now you just have to check if the currently displayed page (or post) has one of these IDs, and if not, display the breadcrumbs. if ( … Read more
There are no real correct order in which to use the conditionals. A general rule of thumb is to put the most used condition first and the least used last I also think that a switch will be a bit better here as it will be bit faster. Normal else/if statements re-evalutes the statement before … Read more
The blog posts index and site front page have been treated as two different query contexts, with is_home() applying to the blog posts index, and is_front_page() applying to the site front page. Be careful not to confuse the two query conditionals: On the site front page, is_front_page() will always return TRUE, regardless of whether the … Read more
You can simply build an array of ID’s of posts from the loops and then just exclude those posts from the following set of queries I don’t know your exact structure, but here is a very basic idea (Requires PHP5.4+ due to short array syntax ([]), for older versions, change back to old array syntax … Read more
Your conditional, is_category() is wrong here. is_category() checks whether or not you are actually on a category page. By using the ! operator in conjuction with is_category() and ID 1293, this part of the condition will always return true except when you are actually on the category page for category 1293. If you need to … Read more
Your first code sample didn’t work because the elseif had no condition. elseif is a concatenation of else and if: if ( something ) { } elseif ( something else ) { } else { } Or <?php if ( something ): ?> <?php elseif ( something else ): ?> <?php else: ?> <?php endif; … Read more
The $pagenow variable is specificly meant to identify pages in the admin area. It cannot be used on the frontend of the site. There is another set of tests to identify pages on the frontend. is_home, for instance, tests whether the current page is the homepage, while is_page(‘about-us’) will test whether you are on the … Read more
I just realized that in my previous answer I focused on duplicating your current SQL query but your query is not what your question’s text says. One condition seems to be that the current user must be the original author. If the revision history exists, then we would need to find out the who authored … Read more
You can use $paged = (get_query_var(‘paged’)) ? get_query_var(‘paged’) : 1; to get current page number