This PECL extension
is not bundled with PHP.
Additional information such as new releases,
downloads, source files, maintainer information, and a CHANGELOG, can be
located here:
http://pecl.php.net/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.
You may download this PECL
extension DLL from the
PHP Downloads page or at
http://snaps.php.net/.