Install APCu 4.0.7. This script requires PHP 5.6.

install_apcu_4-0-7.sh

#!/bin/bash
#
# Tech and Me 2015 - https://www.en0ch.se
#
# This requires PHP 5.6

# Must be root
[[ `id -u` -eq 0 ]] || { echo "Must be root to run script, in Ubuntu type: sudo -i"; exit 1; }

# Print current version
echo
echo Current apcu version is
sudo dpkg -s php5-apcu |grep Version:
sleep 5
echo

# Remove old version
sudo php5dismod apcu
sudo apt-get purge php5-apcu -y

# Install APCu 4.0.7
sudo apt-get update
wget http://launchpadlibrarian.net/195966887/php5-apcu_4.0.7-1build1_amd64.deb
sudo dpkg -i php5-apcu_4.0.7-1build1_amd64.deb
sudo php5enmod apcu
rm php5-apcu_4.0.7-1build1_amd64.deb

# Final configuration
sudo rm /etc/php5/mods-available/apcu-cli.ini
sudo touch /etc/php5/mods-available/apcu-cli.ini
sudo echo 'apc.enable_cli = 1' > /etc/php5/mods-available/apcu-cli.ini
sudo php5enmod apcu-cli
sudo service apache2 restart

exit 0