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: » https://pecl.php.net/package/ssdeep.
How to install ssdeep for PHP
- wget http://downloads.sourceforge.net/project/ssdeep/ssdeep-2.13/ssdeep-2.13.tar.gz
- tar zxvf ssdeep-2.13.tar.gz
- cd ssdeep-2.13
- ./configure
- make
- sudo make install
- ssdeep -h # test
- sudo pecl install ssdeep
- sudo sh -c "echo 'extension=ssdeep.so' >> /etc/php5/mods-available/ssdeep.ini"
- sudo php5enmod ssdeep
- sudo service apache2 restart