$options is an assoc. Available options are :
$options = array(
'cacheDir' => directory where to put the cache files (string),
'caching' => enable / disable caching (boolean),
'lifeTime' => cache lifetime in seconds (int),
'fileLocking' => enable / disable fileLocking (boolean),
'writeControl' => enable / disable write control (boolean),
'readControl' => enable / disable read control (boolean),
'readControlType' => type of read control 'crc32', 'md5', 'strlen',
'memoryCaching' => enable / disable memory caching (boolean),
'onlyMemoryCaching' => enable / disable only memory caching (boolean),
'memoryCachingLimit' => max nbr of records in memory caching (int),
'fileNameProtection' => enable / disable file name protection (boolean),
'automaticSerialization' => enable / disable serialization (boolean)
);