Rar is currently available through PECL » https://pecl.php.net/package/rar.
Also you can use the PECL installer to install the Rar extension, using the following command: pecl -v install rar.
You can always download the tar.gz package and install Rar by hand:
示例 #1 Rar installation
gunzip rar-xxx.tgz tar -xvf rar-xxx.tar cd rar-xxx phpize ./configure && make && make install
Windows users will enable php_rar.dll inside of php.ini in order to use these functions. PECL 扩展的 DLL 当前不可用。参见 在 Windows 上构建章节。