New and updated in 3.0.0
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functionremove_theme_support()
Allows a theme to de-register its support of a certain feature
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functionregister_default_headers()
Registers a selection of default headers to be displayed by the custom header admin UI.
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functionunregister_default_headers()
Unregisters default headers.
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functionget_background_image()
Retrieves background image for custom background.
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functionget_available_languages()
Gets all available languages based on the presence of *.mo and *.l10n.php files in a given directory.
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functionis_child_theme()
Whether a child theme is in use.
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functionis_textdomain_loaded()
Determines whether there are translations for the text domain.
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functionunload_textdomain()
Unloads translations for a text domain.
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Filters whether to override the text domain unloading.
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Fires before the text domain is unloaded.
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hookplugin_locale
Filters a plugin’s locale.
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functionload_muplugin_textdomain()
Loads the translated strings for a plugin residing in the mu-plugins directory.
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hooktheme_locale
Filters a theme’s locale.
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function_ex()
Displays translated string with gettext context.
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functioncapital_P_dangit()
Forever eliminate “Wordpress” from the planet (or at least the little bit we can influence).
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hooksanitize_key
Filters a sanitized key string.
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functionsanitize_key()
Sanitizes a string key.
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Filters the list of allowed comment types for retrieving avatars.
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hookrandom_password
Filters the randomly-generated password.
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functiondisabled()
Outputs the HTML disabled attribute.
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functioncache_users()
Retrieves info for user lists to prevent multiple queries by get_userdata().
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hookpaginate_links
Filters the paginated links for the given archive pages.
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functionregister_admin_color_schemes()
Registers the default admin color schemes.
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hookget_calendar
Filters the HTML calendar output.
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functionget_the_date()
Retrieves the date on which the post was written.
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hookget_the_date
Filters the date a post was published.
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Filters content to display at the bottom of the login form.
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functionwp_login_form()
Provides a simple login form for use anywhere within WordPress.
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Filters the default login form output arguments.
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hooklogin_form_top
Filters content to display at the top of the login form.