(PHP >= 5.3.0, PECL phar >= 2.0.0)
Decompresses the entire Phar archive
object PharData::decompress ([ string $extension ] )
For tar-based archives, this method decompresses the entire archive.
For Zip-based archives, this method fails with an exception. The zlib extension must be enabled to decompress an archive compressed with gzip compression, and the bzip2 extension must be enabled in order to decompress an archi