install ssdeep package for php 7

ssdeep.sh

#!/usr/bin/bash

# installing ssdeep
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

#installing ssdeep_php
wget https://pecl.php.net/get/ssdeep-1.0.4.tgz
tar -zxvpf ssdeep-1.0.4.tgz
cd ssdeep-1.0.4/

# the most important line , you may manualy edit that file
sed -i -e 's/RETURN_STRING(hash, 0);/RETURN_STRING(hash);/g' ssdeep.c
phpize
./configure
make
sudo make install

sudo echo "extension=ssdeep.so" > /etc/php/7.0/mods-available/ssdeep.ini
phpenmod ssdeep
service apache2 restart