PHP can not connect to mysql

Hi there, I am runningn suse72 and there was a mysql installation with the rpm installed. so I did try to get rid of all the stuff I found from the old mysql installation (with yast) and compiled mysql from source. Server is running now. Unfotuantelly php is still trying to connect to the old version. phpinfo tells me the old mysql version number. This is what I am gettinng from php: Warning: Can't connect to local MySQL server through socket '/var/lib/mysql/mysql.sock' (2) in Server is definatelly running. Not the old one though! I killed the old process which was anyhow running. Can anybody help on that? Thank you very much in advance, Andy