Problem with manual running PHP script

Hi, I have scheduled php script, which runs with "c:\php\php.exe php test.php", i.e. without browser. I give working dir the directory of the script. When I start it from the browser all is ok. But when I start manualy sctipt with "c:\php\php.exe text.php >ll.txt" the script gives me an error( in ll.txt): "Call to undefined function: ocilogon() in ...." This is function for connect to Oracle database. When I try to connect to MySQL database with the same script ( just for test) , there in no problem. Can someone help me ? Thanks in advance, Rosen