Exception for when an incorrect number of arguments are passed to a method.
Structure that store Atom Entry Properties
Structure that store common Atom Feed Properties
AtomLib Atom Parser API
Autoloader for Requests for PHP.
Upgrader Skin for Automatic WordPress Upgrades.
Basic Authentication provider
Bulk Plugin Upgrader Skin for WordPress Plugin Upgrades.
Bulk Theme Upgrader Skin for WordPress Theme Upgrades.
Generic Bulk Upgrader Skin for WordPress Upgrades.
Case-insensitive dictionary, suitable for HTTP headers
Core class used for updating core.
cURL HTTP transport
CURL Transport Exception.
The custom background class.
The custom header image class.
Exception for HTTP requests
Core class used for handling file uploads.
Iterator for arrays requiring filtered values
fsockopen HTTP transport
Gettext_Translations class.
Case-insensitive dictionary, suitable for HTTP headers
Handles adding and dispatching events
HTTP Proxy connection interface
Exception based on HTTP response
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https://developer.wordpress.org/reference/classes/