is_404()
Function: Determines whether the query has resulted in a 404 (returns no results).
Source: wp-includes/query.php:858
Function: Determines whether the query has resulted in a 404 (returns no results).
Source: wp-includes/query.php:858
Function: Determines whether the query is for an existing day archive.
Source: wp-includes/query.php:387
Function: Determines whether the current locale is right-to-left (RTL).
Source: wp-includes/l10n.php:1648
Function: Determines whether the query is for an existing tag archive page.
Source: wp-includes/query.php:300
Function: Determines whether the query is for an existing custom taxonomy archive page.
Source: wp-includes/query.php:337
Function: Checks if the current post has any of given tags.
Source: wp-includes/category-template.php:1521
Function: Determines whether the query is for an existing date archive.
Source: wp-includes/query.php:361
Function: Determines whether the query is for a feed.
Source: wp-includes/query.php:413
Function: Determines whether the query is for the blog homepage.
Source: wp-includes/query.php:499
Function: Determines whether the query is for an existing single page.
Source: wp-includes/query.php:584
Function: Determines whether the query is for a specific time.
Source: wp-includes/query.php:786
Function: Determines whether the query is for an existing year archive.
Source: wp-includes/query.php:834
Function: Determines whether the current request is for an administrative interface page.
Source: wp-includes/load.php:1192
Function: Determines whether the query is for an existing month archive.
Source: wp-includes/query.php:553
Function: Determines whether the query is for a paged result and not for the first page.
Source: wp-includes/query.php:608
Function: Determines whether the query is for an existing author archive page.
Source: wp-includes/query.php:242
Function: Determines whether the query is for a search.
Source: wp-includes/query.php:696
Function: Determines whether the query is for an existing single post.
Source: wp-includes/query.php:729
Function: Determines whether a post is sticky.
Source: wp-includes/post.php:2655
Function: Determines whether the query is for an existing archive page.
Source: wp-includes/query.php:161
Function: Determines whether the publish date of the current post in the loop is different from the publish date of the previous post in the loop.
Source: wp-includes/functions.php:1010
Function: Determines whether the query is for a post or page preview.
Source: wp-includes/query.php:632
Function: Determines whether the current post is open for pings.
Source: wp-includes/comment-template.php:1307
Function: Determines whether the post has a custom excerpt.
Source: wp-includes/post-template.php:446
Function: Checks if the current post is within any of the given categories.
Source: wp-includes/category-template.php:257
Function: Determines whether the caller is in the Loop.
Source: wp-includes/query.php:964
Function: Determines whether the query is for an existing category archive page.
Source: wp-includes/query.php:271
Function: Determines whether the query is for an existing single post of any post type (post, attachment, page, custom post types).
Source: wp-includes/query.php:762
Function: Determines whether a taxonomy term exists.
Source: wp-includes/taxonomy.php:1505
Function: Determines whether the given email exists.
Source: wp-includes/user.php:1966