Function: Retrieves the current environment type.

Function: Check if maintenance mode is enabled.

Function: Checks whether current request is a JSONP request, or is expecting a JSONP response.

Function: Checks whether current request is an XML request, or is expecting an XML response.

Function: Is WordPress in Recovery Mode.

Function: Determines whether we are currently on an endpoint that should be protected against WSODs.

Function: Determines whether we are currently handling an Ajax action that should be protected against WSODs.

Function: Filters a given list of plugins, removing any paused plugins from it.

Function: Filters a given list of themes, removing any paused themes from it.

Function: Determines whether the current request should use themes.

Function: Retrieves an array of active and valid themes.

Function: Checks whether current request is a JSON request, or is expecting a JSON response.

Function: Start scraping edited file errors.

Function: Finalize scraping for edited file errors.

Function: Determines whether the current request is a WordPress cron request.

Function: Determines whether file modifications are allowed.

Function: Determines whether the current request is a WordPress Ajax request.

Function: Determines whether a PHP ini value is changeable at runtime.

Function: Retrieves the current network ID.

Function: Check or set whether WordPress is in “installation” mode.

Function: Return the HTTP protocol sent by the server.

Function: Determines whether the current request is for an administrative interface page.