problem with saving data in PHP.

There seems to be no reason why, but no matter what I do in programs whenever a function tells to write ( whether it is a mysql_query() telling to insert values into a table, or an fwrite() for a text file) .. it simply won't. Even though the code is absolutely errorless, and in the if statements for it (to make sure it actually worked) it returns a true value, there is no value in the databases nor any any text written to the file..

any ideas what could be wrong..?

Could you show us the code for it? It's a lot easier to see the code.