Downgrade php to 5.3 on ubuntu 13.10

ubuntu13_10_downgrade_php_5_3.sh

#!/bin/bash
# 
# Original for 5.3 by Ruben Barkow (rubo77) http://www.entikey.z11.de/
# release 1 PHP5.4 to 5.3 by Emil Terziev ( foxy ) Bulgaria

# Originally Posted by Bachstelze http://ubuntuforums.org/showthread.php?p=9080474#post9080474
# OK, here's how to do the Apt magic to get PHP packages from the precise repositories:

echo "Am I root?  "
if [ "$(whoami &2>/dev/null)" != "root" ] && [ "$(id -un &2>/dev/null)" != "root" ] ; then
  echo "  NO!

Error: You must be root to run this script.
Enter
sudo su
"
  exit 1
fi
echo "  OK";


#install aptitude before, if you don`t have it:
apt-get update
apt-get install aptitude
# or if you prefer apt-get use:
# alias aptitude='apt-get'

# finish all apt-problems:
aptitude update
aptitude -f install
#apt-get -f install


# remove all your existing PHP packages. You can list them with dpkg -l| grep php
PACKAGES="libapr1 libaprutil1 libaprutil1-dbd-sqlite3 libaprutil1-ldap dh-make-php libapache2-mod-php5 php-pear php-apc php5 php5-cli php5-common php5-curl php5-dev php5-gd php5-imap php5-ldap php5-mysql php5-xdebug php5-xhprof apache2 apache2-bin apache2-data apache2-mpm-prefork apache2-mpm-event apache2-mpm-worker apache2-utils apache2.2-bin apache2.2-common libapache2-mod-php5";
#PHPLIST=$(for i in $(dpkg -l | grep php|awk '{ print $2 }' ); do echo $i; done)
#APACHELIST=$(for i in $(dpkg -l | grep apache|awk '{ print $2 }' ); do echo $i; done)
echo these packages will be removed: $PACKAGES
# you need not to purge, if you have upgraded from precise:
aptitude purge $PACKAGES
# on a fresh install, you need purge:
# aptitude remove --purge $PHPLIST


#Create a file each in /etc/apt/preferences.d like this (call it for example /etc/apt/preferences.d/php5_2);
#
#Package: php5
#Pin: release a=precise
#Pin-Priority: 991
#
#The big problem is that wildcards don't work, so you will need one such stanza for each PHP package you want to pull from precise:

echo ''>/etc/apt/preferences.d/php5_3
for i in $PACKAGES ; do echo "Package: $i
Pin: release a=precise
Pin-Priority: 991
">>/etc/apt/preferences.d/php5_3; done

MIRRORURL='http://ftp.byfly.by/pub/ubuntu/'
echo ''>/etc/apt/sources.list.d/precise.list
echo "# needed sources for php5.3:
deb $MIRRORURL precise main restricted
deb-src $MIRRORURL precise main restricted

deb $MIRRORURL precise-updates main restricted
deb-src $MIRRORURL precise-updates main restricted

deb $MIRRORURL precise universe
deb-src $MIRRORURL precise universe
deb $MIRRORURL precise-updates universe
deb-src $MIRRORURL precise-updates universe

deb $MIRRORURL precise multiverse
deb-src $MIRRORURL precise multiverse
deb $MIRRORURL precise-updates multiverse
deb-src $MIRRORURL precise-updates multiverse

deb $MIRRORURL precise-security main restricted
deb-src $MIRRORURL precise-security main restricted
deb $MIRRORURL precise-security universe
deb-src $MIRRORURL precise-security universe
deb $MIRRORURL precise-security multiverse
deb-src $MIRRORURL precise-security multiverse

deb $MIRRORURL precise-backports main restricted universe multiverse
deb-src $MIRRORURL precise-backports main restricted universe multiverse

" >> /etc/apt/sources.list.d/precise.list

aptitude update

sudo service apache2 restart

echo install new from precise:
aptitude -t precise install $PACKAGES

# at the end retry the modul libapache2-mod-php5 in case it didn't work the first time:
aptitude -t precise install libapache2-mod-php5

sudo service apache2 restart