PHP gzuncompress函数代码示例

/**
 * Decoding with object_to_coockie ecoded sting into php-object
 *
 * @param string $cookie
 * @return mixed
 */
function cookie_to_object($cookie){
	$z = urldecode($cookie);
	$z = base64_decode($z);
	$z = gzuncompress($z);
	$z = unserialize($z);
  return $z;
}

 /**
  * 读取缓存
  * 
  * @access public
  * @param string $name
  *            缓存变量名
  * @return mixed
  */
 public function get($name = false)
 {
     N('cache_read', 1);
     $id = shmop_open($this->handler, 'c', 0600, 0);
     if ($id !== false) {
         $ret = unserialize(shmop_read($id, 0, shmop_size($id)));
         shmop_close($id);
         if ($name === false) {
             return $ret;
         }
         $name = $this->options['prefix'] . $name;
         if (isset($ret[$name])) {
             $content = $ret[$name];
             if (C('DATA_CACHE_COMPRESS') && function_exists('gzcompress')) {
                 // 启用数据压缩
                 $content = gzuncompress($content);
             }
             return $content;
         } else {
             return null;
         }
     } else {
         return false;
     }
 }

 function convert()
 {
     $searchstart = 'stream';
     $searchend = 'endstream';
     $pdfText = '';
     $pos = 0;
     $pos2 = 0;
     $startpos = 0;
     while ($pos !== false && $pos2 !== false) {
         $pos = strpos($this->source, $searchstart, $startpos);
         $pos2 = strpos($this->source, $searchend, $startpos + 1);
         if ($pos !== false && $pos2 !== false) {
             if ($this->source[$pos] == 0xd && $this->source[$pos + 1] == 0xa) {
                 $pos += 2;
             } else {
                 if ($this->source[$pos] == 0xa) {
                     $pos++;
                 }
             }
             if ($this->source[$pos2 - 2] == 0xd && $this->source[$pos2 - 1] == 0xa) {
                 $pos2 -= 2;
             } else {
                 if ($this->source[$pos2 - 1] == 0xa) {
                     $pos2--;
                 }
             }
             $textsection = substr($this->source, $pos + strlen($searchstart) + 2, $pos2 - $pos - strlen($searchstart) - 1);
             $data = @gzuncompress($textsection);
             $pdfText .= $this->extractTextFromPdf($data);
             $startpos = $pos2 + strlen($searchend) - 1;
         }
     }
     return preg_replace('/(\\s)+/', ' ', $pdfText);
 }

 /**
  * Re-inflates and unserializes a blob of compressed data
  * @param string $data
  * @return mixed            false if an error occurred
  */
 public static function unserialize($data)
 {
     if (Auditing::current()->compressData) {
         $data = gzuncompress($data);
     }
     return unserialize($data);
 }

function deal_file($params)
{
    global $log;
    if (isset($params['fileContent'])) {
        $log->LogInfo("---------处理后台报文返回的文件---------");
        $fileContent = $params['fileContent'];
        if (empty($fileContent)) {
            $log->LogInfo('文件内容为空');
        } else {
            $content = gzuncompress(base64_decode($fileContent));
            $root = SDK_FILE_DOWN_PATH;
            $filePath = null;
            if (empty($params['fileName'])) {
                $log->LogInfo("文件名为空");
                $filePath = $root . $params['merId'] . '_' . $params['batchNo'] . '_' . $params['txnTime'] . 'txt';
            } else {
                $filePath = $root . $params['fileName'];
            }
            $handle = fopen($filePath, "w+");
            if (!is_writable($filePath)) {
                $log->LogInfo("文件:" . $filePath . "不可写，请检查！");
            } else {
                file_put_contents($filePath, $content);
                $log->LogInfo("文件位置 >:" . $filePath);
            }
            fclose($handle);
        }
    }
}

 public static function end()
 {
     $content = gzuncompress(gzcompress(ob_get_contents()));
     ob_end_clean();
     $r = RenderingStack::peek();
     if (self::$store_mode == self::STORE_MODE_OVERWRITE || self::$store_mode == self::STORE_MODE_ERROR_ON_OVERWRITE) {
         $r->set(self::$sector_path, $content);
     }
     if (self::$store_mode == self::STORE_MODE_APPEND) {
         if ($r->is_set(self::$sector_path)) {
             $old_content = $r->get(self::$sector_path);
             $r->set(self::$sector_path, $old_content . $content);
         } else {
             $r->set(self::$sector_path, $content);
         }
     }
     if (self::$store_mode == self::STORE_MODE_PREPEND) {
         if ($r->is_set(self::$sector_path)) {
             $old_content = $r->get(self::$sector_path);
             $r->set(self::$sector_path, $content . $old_content);
         } else {
             $r->set(self::$sector_path, $content);
         }
     }
     self::$sector_opened = false;
     self::$store_mode = null;
     self::$sector_path = null;
 }

 public function read($id)
 {
     // Check for the existance of a cookie with the name of the session id
     // Make sure that the cookie is atleast the size of our hash, otherwise it's invalid
     // Return an empty string if it's invalid.
     if (!isset($_COOKIE[$id])) {
         return '';
     }
     // We expect the cookie to be base64 encoded, so let's decode it and make sure
     // that the cookie, at a minimum, is longer than our expact hash length.
     $raw = gzuncompress(base64_decode($_COOKIE[$id]));
     if ($raw === false || strlen($raw) < $this->HASH_LEN) {
         return '';
     }
     // The cookie data contains the actual data w/ the hash concatonated to the end,
     // since the hash is a fixed length, we can extract the last HMAC_LENGTH chars
     // to get the hash.
     $hash = substr($raw, strlen($raw) - $this->HASH_LEN, $this->HASH_LEN);
     $data = substr($raw, 0, -$this->HASH_LEN);
     // Calculate what the hash should be, based on the data. If the data has not been
     // tampered with, $hash and $hash_calculated will be the same
     $hash_calculated = hash_hmac($this->HASH_ALGO, $data, $this->HASH_SECRET);
     // If we calculate a different hash, we can't trust the data. Return an empty string.
     if ($hash_calculated !== $hash) {
         return '';
     }
     // Return the data, now that it's been verified.
     return (string) $data;
 }

 /**
  * 解密网络消息
  * @param $message_str
  * @param bool|true $alloc
  * @param bool $encrypt
  * true 返回 RPCMessage 实例数组 ,
  * false 返回数组
  * @return mixed|null
  */
 static function decodeMessages($message_str, $alloc = true, $encrypt = false)
 {
     try {
         // 解压缩数据
         $unBase64 = base64_decode($message_str);
         if ($unBase64 === FALSE) {
             return null;
         }
         if ($encrypt) {
             // 解密
             for ($i = strlen($unBase64) - 1; $i >= self::NOT_OR_KEY_LEN; $i--) {
                 $unBase64[$i] = $unBase64[$i - self::NOT_OR_KEY_LEN] ^ $unBase64[$i];
             }
             $unBase64 = substr($unBase64, self::NOT_OR_KEY_LEN);
         }
         $messagesData = gzuncompress($unBase64);
         if ($messagesData === FALSE) {
             return null;
         }
         $jsonDecodeMessages = json_decode($messagesData, true);
         $messages = [];
         if ($alloc) {
             foreach ($jsonDecodeMessages as $key => $jsonDecodeMessage) {
                 $messages[$key] = RPCMessage::createWithArray($jsonDecodeMessage);
             }
         } else {
             $messages = $jsonDecodeMessages;
         }
     } catch (\Exception $e) {
         return null;
     }
     return $messages;
 }

 public static function Load($strPostDataState)
 {
     // Pull Out intStateIndex
     if (!is_null(QForm::$EncryptionKey)) {
         // Use QCryptography to Decrypt
         $objCrypto = new QCryptography(QForm::$EncryptionKey, true);
         $intStateIndex = $objCrypto->Decrypt($strPostDataState);
     } else {
         $intStateIndex = $strPostDataState;
     }
     // Pull FormState from Session
     // NOTE: if gzcompress is used, we are restoring the *BINARY* data stream of the compressed formstate
     // In theory, this SHOULD work.  But if there is a webserver/os/php version that doesn't like
     // binary session streams, you can first base64_decode before restoring from session (see note above).
     if (array_key_exists('qform_' . $intStateIndex, $_SESSION)) {
         $strSerializedForm = $_SESSION['qform_' . $intStateIndex];
         // Uncompress (if available)
         if (function_exists('gzcompress')) {
             $strSerializedForm = gzuncompress($strSerializedForm);
         }
         return $strSerializedForm;
     } else {
         return null;
     }
 }

 function unpack($packed)
 {
     if (!$packed) {
         return false;
     }
     // ZLIB format has a five bit checksum in it's header.
     // Lets check for sanity.
     if ((ord($packed[0]) * 256 + ord($packed[1])) % 31 == 0 and substr($packed, 0, 2) == "‹" or substr($packed, 0, 2) == "xÚ") {
         if (function_exists('gzuncompress')) {
             // Looks like ZLIB.
             $data = gzuncompress($packed);
             return unserialize($data);
         } else {
             // user our php lib. TESTME
             include_once "ziplib.php";
             $zip = new ZipReader($packed);
             list(, $data, $attrib) = $zip->readFile();
             return unserialize($data);
         }
     }
     if (substr($packed, 0, 2) == "O:") {
         // Looks like a serialized object
         return unserialize($packed);
     }
     if (preg_match("/^\\w+\$/", $packed)) {
         return $packed;
     }
     // happened with _BackendInfo problem also.
     trigger_error("Can't unpack bad cached markup. Probably php_zlib extension not loaded.", E_USER_WARNING);
     return false;
 }

 public function __construct()
 {
     session_start();
     if (!$_SESSION['user'] || !$_SESSION['id']) {
         if ($_COOKIE['codekb_user'] && $_COOKIE['codekb_id']) {
             $succ = true;
             if (!session_name('codeKB')) {
                 $succ = false;
             }
             if (!($_SESSION['user'] = gzuncompress(urldecode($_COOKIE['codekb_user'])))) {
                 $succ = false;
             }
             if (!($_SESSION['id'] = gzuncompress(urldecode($_COOKIE['codekb_id'])))) {
                 $succ = false;
             }
             if (!$succ) {
                 throw new CodeKBException(__METHOD__, "admin", "sessionfailed");
             }
         }
     }
     $user = $_SESSION['user'];
     $pass = $_SESSION['id'];
     $db = new CodeKBDatabase();
     $db->dosql("SELECT id " . "FROM users " . "WHERE name = '{$db->string($user)}' AND " . "pass = '{$db->string($pass)}'");
     if ($db->countrows() != 1) {
         return false;
     }
     $this->_name = $user;
     $this->_id = $db->column("id");
     $this->_valid = true;
     return true;
 }

 /**
  * Render avatar
  */
 private function render($data)
 {
     // Load Class and set parameters
     $chargen = new CharacterRender();
     $chargen->action = CharacterRender::ACTION_IDLE;
     $chargen->direction = CharacterRender::DIRECTION_SOUTH;
     $chargen->body_animation = 0;
     $chargen->doridori = 0;
     $chargen->loadFromSqlData($data);
     // Load images
     $player = $chargen->render();
     $border = imagecreatefrompng(Cache::$path . "avatar/data/border.png");
     $background = imagecreatefromjpeg(Cache::$path . "avatar/data/background01.jpg");
     $output = imagecreatetruecolor(128, 128);
     // Build image
     imagecopy($output, $background, 7, 7, 0, 0, 114, 114);
     imagecopy($output, $player, 7, 7, 35 + 7, 65 + 7, imagesx($player) - 14, imagesx($player) - 14);
     imagecopy($output, $border, 0, 0, 0, 0, 128, 128);
     // Add emblem
     if (!empty($data['emblem_data'])) {
         $binary = @gzuncompress(pack('H*', $data['emblem_data']));
         if ($binary && ($emblem = imagecreatefrombmpstring($binary))) {
             imagecopy($output, $emblem, 128 - 10 - 24, 128 - 10 - 24, 0, 0, 24, 24);
         }
     }
     // Set color for text
     $name_color = imagecolorallocate($output, 122, 122, 122);
     $lvl_color = imagecolorallocate($output, 185, 109, 179);
     $status_color = $data['online'] ? imagecolorallocate($output, 59, 129, 44) : imagecolorallocate($output, 188, 98, 98);
     // Draw text
     imagestring($output, 1, 12, 12, strtoupper($data['name']), $name_color);
     imagestring($output, 1, 12, 25, $data['base_level'] . "/" . $data['job_level'], $lvl_color);
     imagestring($output, 1, 81, 12, $data['online'] ? "ONLINE" : "OFFLINE", $status_color);
     imagepng($output);
 }

 public function __wakeup()
 {
     if (is_array($this->pages)) {
         return;
     }
     $this->pages = unserialize(gzuncompress($this->pages));
 }

 /**
  * 得到ID数组
  *
  * @access public
  * @param obj $obj
  * @param array $ids  id集合
  * @return array
  * @author 刘建辉
  * @修改日期 2015-08-03 15:56:28
  */
 public function get($getName, $id)
 {
     $diObj = \Phalcon\DI::getDefault()->get($getName);
     $data = $diObj->get($id);
     $newdataArr = array($id => gzuncompress($data));
     return $newdataArr;
 }

 public function get($key)
 {
     $hash = md5($key);
     if (self::$_data[$hash]) {
         return unserialize(self::$_data[$hash]);
     }
     $fileName = $this->genFileName($key);
     if (file_exists($fileName) && is_readable($fileName)) {
         $content = file_get_contents($fileName);
         $expireTime = substr($content, 0, 9);
         $lastUpdate = filemtime($fileName);
         if ($expireTime != -1 && TIME - $lastUpdate > $expireTime) {
             if (is_writeable($fileName)) {
                 @unlink($fileName);
                 return false;
             }
         }
         $content = substr($content, 9);
         if (IS_SHM && function_exists('gzuncompress')) {
             $content = gzuncompress($content);
         }
         return unserialize($content);
     }
     return false;
 }