my current version of PHP installed in my ubuntu 11.04 box , is PHP5.3.5, now how to update it into the latest stable PHP5.3.8 version? this tutorial didn't work for me
9.10 is EOL on April 2011.
That means there are no more updates (no bugs or security issues fixed). You should consider upgrading to more recent release. I'd suggest you to upgrade to 10.04 LTS which would be supported till 2015.