spl_autoload_register()
Function: Registers a function to be autoloaded.
Source: wp-includes/spl-autoload-compat.php:50
spl_autoload_unregister()
Function: Unregisters an autoloader function.
Source: wp-includes/spl-autoload-compat.php:78
spl_autoload_functions()
Function: Retrieves the registered autoloader functions.
Source: wp-includes/spl-autoload-compat.php:97