Configuration problem?

I have php installed and a working copy of phpMyAdmin, MySQL and Apache2.0.58 on a windows2k box. phpMyAdmin works fine, as do a couple of other php scripts. However, when I go to try to code in php myself, I get a blank screen. I downloaded zend-studio to try to see if I could trace the fault with my setup. The studio shows that I can do simple echo scripts -- but that I get the following error when I try to connect to the mySQL database Debug Error: C:\Homepage\psychtest\private\search.htm line 13 - Call to undefined function mysql_pconnect() the following call (from your php tutorial) also returns nothing. echo $_SERVER['HTTP_USER_AGENT']; The zend studio debugger returns the following message... Notice: C:\Homepage\psychtest\private\search.htm line 10 - Undefined index: HTTP_USER_AGENT Am I supposed to insert a reference to a library of functions somewhere at the start of my code? I was able to enter phpinfo in the zend debugger, and I noticed that the info returned was NOT the same as the settings in the php.ini file in my C:/php/php.ini file. Thanks in advance for any ideas or suggestions you can provide. Have a great day! Bill Angus, MA http://www.psychtest.com