Upgrade to php5.6+ on ubuntu

[Richardkl]

stop apache2
service apache2 stop

add-apt-repository ppa:ondrej/php
apt update
apt-get autoremove
apt install php5.6-dev libapache2-mod-php5.6 php5.6-curl php5.6-gd php5.6-mbstring php5.6-mcrypt php5.6-mysql php5.6-xml php5.6-xmlrpc php5.6-zip
a2dismod php7.0
a2enmod php5.6
systemctl restart apache2

and to add suhosin

service apache2 stop

https://suhosin.org/stories/install.html

YOU MUSR HAVE A -DEV VERSION OF PHP INSTALLED SO IT ADDS BUILD JSON AND PSPIZE FILES NEEDED FOR USING PHPISE COMMAND

cd /tmp
wget https://download.suhosin.org/suhosin-0.9.38.tar.gz
tar -xzf suhosin-0.9.38.tar.gz
rm -f suhosin-0.9.38.tar.gz
cd suhosin-0.9.38
phpize -v
tells you that php api version it is going to run

make sure it matches the number in yours

/usr/include/php
/usr/lib/php

phpize
./configure
make
cd ..
rm -rf suhosin-0.9.38

add extension=suhosin.so to php.ini
cd /etc/php/apache2
nano php.ini

service apache2 restart

This program makes use of the Zend Scripting Language Engine:
Zend Engine v2.5.0, Copyright © 1998-2014 Zend Technologies
with Zend OPcache v7.0.3, Copyright © 1999-2014, by Zend Technologies
with Suhosin v0.9.37.1, Copyright © 2007-2014, by SektionEins GmbH