PclZip能够压缩与解压缩Zip格式的压缩档（WinZip、PKZIP）；且能对此类类档案进行处理，包括产生压缩档、列出压缩档的内容以及解压缩档案等等。由于能够在伺服器端进行压缩与解压缩的动作，所以相当方便使用。

PclZip定义一个PclZip类别，其类别物件可视为一个ZIP档案，亦提供method

-PclZip Zip compression and decompression to the compressed format file (WinZip, PKZIP)　and can deal with this type of class files, including the generation of compressed file, list the contents of compressed files and extract the files and so on. As to the server-side compression and decompression of the action, so very easy to use. PclZip define a PclZip class, the class object can be regarded as a ZIP file, and also provides method