&reftitle.install; &pecl.moved; &pecl.info; &url.pecl.package;lzf. In order to use these functions you must compile PHP with lzf support by using the --with-lzf[=DIR] configure option. You may also pass --enable-lzf-better-compression to optimize LZF for space rather then speed. Windows users will enable php_lzf.dll inside of &php.ini; in order to use these functions. &pecl.windows.download;