This » PECL extension is not bundled with PHP.
Information for installing this PECL extension may be found in the manual chapter titled Installation of PECL extensions. Additional information such as new releases, downloads, source files, maintainer information, and a CHANGELOG, can be located here: » http://pecl.php.net/package/judy
Download and install » libJudy, then :
phpize ./configure --with-judy[=DIR] make make test make install
libJudy can be installed with apt-get :
apt-get install libjudydebian1 libjudy-dev
Download » libJudy, then extract the sources and open the Visual Studio command prompt and navigate to the source directory. Then execute :
Next, the PHP Judy extension can be installed from PECL or from the sources by extracting the pecl/judy into your build folder where the build scripts will be able to pick it up, e.g.:
buildconf configure --with-judy=shared nmake
Download and install » libJudy. Then install the Judy extension from PECL or from the sources.