if( count( $defaultContent ) > 1 ) {
	foreach ( $defaultContent as $var )	{
			static $n = 1;
			$defaultContent = array_merge($defaultContent[0], $defaultContent[$n]);
			$n++;
		}
}

Array
(
    [0] => Array
        (
            [gzipencode] => Array
                (
                    [gzipencode_Test] => 22222ter
                    [gzipencode_11111name] => 222222alue
                )

        )

    [1] => Array
        (
            [caching] => Array
                (
                    [CACHE_LIVE_TIME] => 1800
                    [testname] => testvalue
                )

        )

    [2] => Array
        (
            [clearMyTracks] => Array
                (
                    [cookie_Test] => testter
                    [testdname] => testvalue
                )

        )

)