I used the automatic upgrade in webmin, now everything's broken. I think it's the php5 causing an issue, but I have no idea why or what to do about it. I'd like to roll it back but don't know how. D:

Which distribution are you running?
What did the update consist of?
How long has it been since your last update?
What, exactly, is broken?
What is it doing?
How recent is your most recent backup?

I upgraded to PHP5 and my site broke. When I went to my site the browser would try to download a php file. I followed these steps to fix it.

sudo apt-get install php5
sudo apt-get install libapache2-mod-php5
sudo /etc/init.d/apache2 restart

sudo a2enmod php5
sudo /etc/init.d/apache2 force-reload

sudo apt-get install php5-xsl
sudo apt-get install php5-gd
sudo apt-get install php-pear

sudo /etc/init.d/apache2 restart

I found these directions in the ubuntu forums. Than you.