is_singular()

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:723

Used by 20 functions | Uses 3 functions

is_year()

Function: Determines whether the query is for an existing year archive.

Source: wp-includes/query.php:795

Used by 3 functions | Uses 3 functions

is_404()

Function: Determines whether the query has resulted in a 404 (returns no results).

Source: wp-includes/query.php:819

Used by 11 functions | Uses 3 functions