is_robots()
Function: Is the query for the robots.txt file?
Source: wp-includes/query.php:652
is_rtl()
Function: Determines whether the current locale is right-to-left (RTL).
Source: wp-includes/l10n.php:1656
is_search()
Function: Determines whether the query is for a search.
Source: wp-includes/query.php:696
is_serialized()
Function: Checks value to find if it was serialized.
Source: wp-includes/functions.php:668
is_serialized_string()
Function: Checks whether serialized data is of string type.
Source: wp-includes/functions.php:735
is_server_error()
Function:
Source: wp-includes/rss.php:707
is_single()
Function: Determines whether the query is for an existing single post.
Source: wp-includes/query.php:729
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:762
is_site_admin()
Function: Determine if user is a site admin.
Source: wp-includes/ms-deprecated.php:64
is_site_meta_supported()
Function: Determines whether site meta is enabled.
Source: wp-includes/functions.php:6393