Functions
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functionis_taxonomy()
Checks that the taxonomy name exists.
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functionis_taxonomy_hierarchical()
Determines whether the taxonomy object is hierarchical.
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functionis_taxonomy_viewable()
Determines whether a taxonomy is considered “viewable”.
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functionis_term()
Check if Term exists.
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functionis_term_publicly_viewable()
Determines whether a term is publicly viewable.
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functionis_textdomain_loaded()
Determines whether there are translations for the text domain.
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functionis_theme_paused()
Determines whether a theme is technically active but was paused while loading.
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functionis_time()
Determines whether the query is for a specific time.
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functionis_trackback()
Determines whether the query is for a trackback endpoint call.
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functionis_uninstallable_plugin()
Determines whether the plugin can be uninstalled.
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functionis_upload_space_available()
Determines if there is any upload space left in the current blog’s quota.
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functionis_user_admin()
Determines whether the current request is for a user admin screen.
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functionis_user_logged_in()
Determines whether the current visitor is a logged in user.
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functionis_user_member_of_blog()
Finds out whether a user is a member of a given blog.
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functionis_user_option_local()
Check whether a usermeta key has to do with the current blog.
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functionis_user_spammy()
Determines whether a user is marked as a spammer, based on user login.
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functionis_utf8_charset()
Indicates if a given slug for a character set represents the UTF-8 text encoding. If not provided, examines the current blog’s charset.
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functionis_wpmu_sitewide_plugin()
Deprecated functionality for determining if the current plugin is network-only.
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functionis_wp_error()
Checks whether the given variable is a WordPress Error.
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functionis_wp_version_compatible()
Checks compatibility with the current WordPress version.
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functionis_year()
Determines whether the query is for an existing year archive.
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functionjs_escape()
Escape single quotes, specialchar double quotes, and fix line endings.
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functionkses_init()
Sets up most of the KSES filters for input form content.
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functionkses_init_filters()
Adds all KSES input form content filters.
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functionkses_remove_filters()
Removes all KSES input form content filters.
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functionlanguage_attributes()
Displays the language attributes for the ‘html’ tag.
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functionlike_escape()
Formerly used to escape strings before searching the DB. It was poorly documented and never worked as described.
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functionlinks_add_base_url()
Adds a base URL to relative links in passed content.
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functionlinks_add_target()
Adds a target attribute to all links in passed content.
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functionlinks_popup_script()
Show the link to the links popup and the number of links.