PHP-FPM

$ aptitude purge `dpkg -l | grep php | grep -w 5 | awk '{print $2}' | xargs`

nano /etc/apt/sources.list

deb http://snapshot.debian.org/archive/debian/20120221T041601Z/ unstable main
deb-src http://snapshot.debian.org/archive/debian/20120221T041601Z/ unstable main

Обновляем пакеты

$ apt-get -o Acquire::Check-Valid-Until=false update
$ aptitude -o Acquire::Check-Valid-Until=false update
$ apt-get update
$ apt-get upgrade

Универсальный установщик php с указанием версии

#!/usr/bin/sh
 
VERSION="5.3.10-2" # CHANGES THIS WITH YOUR VERSION OF PACKAGE
 
aptitude install php5=$VERSION php5-cli=$VERSION php5-common=$VERSION php5-fpm=$VERSION
aptitude install php-pear=$VERSION php5-curl=$VERSION php5-gd=$VERSION php5-intl=$VERSION php5-mysql=$VERSION php5-pspell=$VERSION php5-recode=$VERSION php5-snmp=$VERSION php5-sqlite=$VERSION php5-tidy=$VERSION php5-xmlrpc=$VERSION php5-xsl=$VERSION php5-dev=$VERSION

Установка PHP-FPM

$ apt-get install python-software-properties
$ add-apt-repository ppa:ondrej/php-7.0