protected static function _serialize($data, $mode, $params = null)
{
switch ($mode) {
case self::NONE:
break;
// $params['level'] = Level of compression (default: 3)
// $params['workfactor'] = How does compression phase behave when given
// worst case, highly repetitive, input data
// (default: 30)
// $params['level'] = Level of compression (default: 3)
// $params['workfactor'] = How does compression phase behave when given
// worst case, highly repetitive, input data
// (default: 30)
case self::BZIP:
$data = bzcompress($data, isset($params['level']) ? $params['level'] : 3, isset($params['workfactor']) ? $params['workfactor'] : 30);
if (is_integer($data)) {
$data = false;
}
break;
case self::WDDX:
$data = wddx_serialize_value($data);
break;
case self::IMAP8:
$data = quoted_printable_encode($data);
break;
case self::IMAPUTF7:
$data = Horde_Imap_Client_Utf7imap::Utf8ToUtf7Imap(Horde_String::convertCharset($data, 'ISO-8859-1', 'UTF-8'));
break;
case self::IMAPUTF8:
$data = Horde_Mime::decode($data);
break;
// $params['level'] = Level of compression (default: 3)
// $params['level'] = Level of compression (default: 3)
case self::GZ_DEFLATE:
$data = gzdeflate($data, isset($params['level']) ? $params['level'] : 3);
break;
case self::BASIC:
$data = serialize($data);
break;
// $params['level'] = Level of compression (default: 3)
// $params['level'] = Level of compression (default: 3)
case self::GZ_COMPRESS:
$data = gzcompress($data, isset($params['level']) ? $params['level'] : 3);
break;
case self::BASE64:
$data = base64_encode($data);
break;
// $params['level'] = Level of compression (default: 3)
// $params['level'] = Level of compression (default: 3)
case self::GZ_ENCODE:
$data = gzencode($data, isset($params['level']) ? $params['level'] : 3);
break;
case self::RAW:
$data = rawurlencode($data);
break;
case self::URL:
$data = urlencode($data);
break;
// $params = Source character set
// $params = Source character set
case self::UTF7:
$data = Horde_String::convertCharset($data, $params, 'UTF-7');
break;
// $params = Source character set
// $params = Source character set
case self::UTF7_BASIC:
$data = self::serialize($data, array(self::UTF7, self::BASIC), $params);
break;
case self::JSON:
$tmp = json_encode($data);
/* Basic error handling attempts.
* TODO: JSON_ERROR_UTF8 = 5; available as of PHP 5.3.3 */
if (json_last_error() === 5) {
$data = json_encode(Horde_String::convertCharset($data, $params, 'UTF-8', true));
} else {
$data = $tmp;
}
break;
case self::LZF:
$data = lzf_compress($data);
break;
}
if ($data === false) {
throw new Horde_Serialize_Exception('Serialization failed.');
}
return $data;
}
