Problems in php

Dear Sirs, I have installed a Sambar 64 server and PHP 4.7 plus MySql. I connect through localhost and the PHPINFO.php file works OK on IE and Firefox. PHPINFO.php shows that the php.ini file is situated in C:/Windows as advised and I have altered the error_log and extensions_dir as advised by Sambar. The problem is: When I try to run a php file, either to connect to MySql OR just a simple Create Button file, neither browser will output either file. I get no error messages and the error logs show nothing significant. I just get the html source code (NONE of the php code) when I interrogate 'view source' in IE and just a blank in Firefox. Can you please advise. I don't know where to look next. I attach the two test files for your perusal. Best regards Roger Collis