Pop\Compress\Bzip2::decompress PHP Method

    public static function decompress($data)
    {
        // Decompress the file
        if (@file_exists($data)) {
            $bz = bzopen($data, 'r');
            $uncompressed = '';
            // Read the uncompressed data.
            while (!feof($bz)) {
                $uncompressed .= bzread($bz, 4096);
            }
            // Close the Bzip2 compressed file and write
            // the data to the uncompressed file.
            bzclose($bz);
            if (stripos($data, '.tbz2') !== false) {
                $newFile = str_replace('.tbz2', '.tar', $data);
            } else {
                if (stripos($data, '.tbz') !== false) {
                    $newFile = str_replace('.tbz', '.tar', $data);
                } else {
                    $newFile = str_replace('.bz2', '', $data);
                }
            }
            file_put_contents($newFile, $uncompressed);
            return $newFile;
            // Else, decompress the string
        } else {
            return bzdecompress($data);
        }
    }

 /**
  * Method to extract an archived and/or compressed file
  *
  * @param  string $to
  * @return void
  */
 public function extract($to = null)
 {
     if ($this->compression == 'bz') {
         $this->path = Compress\Bzip2::decompress($this->path);
         $this->archive = new \Archive_Tar($this->path);
     } else {
         if ($this->compression == 'gz') {
             $this->path = Compress\Gzip::decompress($this->path);
             $this->archive = new \Archive_Tar($this->path);
         }
     }
     $this->archive->extract(null !== $to ? $to : './');
 }