spl_autoload Default implementation for __autoload() &reftitle.description; voidspl_autoload stringclass_name stringfile_extensions This function is intended to be used as a default implementation for __autoload(). If nothing else is specified and autoload_register() is called without any parameters then this functions will be used for any later call to __autoload(). &reftitle.parameters; class_name file_extensions By default it checks all include paths to contain filenames built up by the lowercase class name appended by the filename extensions .inc and .php. &reftitle.returnvalues; &return.void;