&reftitle.runtime; &extension.runtime; &Name; &Default; &Changeable; &Changelog; igbinary.compact_strings 1 INI_ALL &Name; &Default; &Changeable; &Changelog; session.save_handler "files" INI_ALL &ini.php.constants; &ini.descriptions.title; igbinary.compact_strings bool Enable or disable compacting of duplicate strings. The default is On. session.save_handler string Igbinary is used as session handler by setting this value to igbinary.