I want to write a general PHP script to process any Input Form F

Make sure that track_vars is in your php3.ini file. If you add "-- enable-track-vars" to compile PHP, you must have it. You need to select one of the following two methods: Add at compilation or add the first line of each script <? Php_track_vars?> String. When track_vars is enabled, three arrays are created: $ HTTP_GET_VARS, $ HTTP_POST_VARS, and $ HTTP_COOKIE_VARS. Therefore, to create a general POST method script, you can use the following program:
While (list ($ var, $ value) = each ($ HTTP_POST_VARS ))
{Echo "$ var = $ value
N ";}