I am getting this strange PHP error, it works fine on my local testing machine and when unencoded. But as soon as I encode in using Zend Guard I get this error:

Fatal error: Cannot redeclare getsqlvaluestring() (previously declared in /home/*******/public_html/us/includes/sys_sql_parser.php:2) in /home/*******/public_html/us/includes/sys_sql_parser.php on line 0

The strange thing about it is that the error is occurring on line 0.

What can I do about this?