spl_autoload_functions Return all registered __autoload() functions &reftitle.description; arrayspl_autoload_functions Get all registered __autoload() functions. &reftitle.parameters; &no.function.parameters; &reftitle.returnvalues; An array of all registered __autoload functions. If the autoload stack is not activated then the return value is &false;. If no function is registered the return value will be an empty array.