php-downgrade-5.3-to-5.2.bash

# remove all php packge
sudo aptitude purge `dpkg -l | grep php| awk '{print $2}' |tr "\n" " "`
sudo su
# use karmik for php pakage
echo -e "Package: php5\nPin: release a=karmic\nPin-Priority: 991\n"  >> /etc/apt/preferences.d/php
apt-cache search php5-|grep php5-|awk '{print "Package:", $1,"\nPin: release a=karmic\nPin-Priority: 991\n"}' >> /etc/apt/preferences.d/php
apt-cache search -n libapache2-mod-php5 |awk '{print "Package:", $1,"\nPin: release a=karmic\nPin-Priority: 991\n"}' >> /etc/apt/preferences.d/php
exit
# add karmik to source list
sed s/lucid/karmic/g /etc/apt/sources.list | sudo tee -a /etc/apt/sources.list.d/karmic.list
# update package database (use apt-get if aptitude crash)
sudo apt-get update
# install php
sudo apt-get install -t karmic php5-cli libapache2-mod-php5