Help needed with php and db2

Good day all, I am new to php and lucky me my boss has asked me to do a 'proof of concept' with php against IBM DB2. Our DB2 database resides on an OS/390 system. I'm just trying to figure out at this point if php can actually connect to our database on the OS/390. I've read about ODBC connectivity to db2, but it was on an apache/linux system...not a mainframe or enterprise system. Any thoughts anyone might have as to where I should start or even if this can truely be done I would greatly appreciate. Thanks in advance! Stephanie Workman Sr. Programmer/Analyst The University of Tennessee (865)-974-8108