I have a HTML/CSS site and have recently been hit with lots of form spam (bots sending me bogus form fills). I have found a way that sound like it will fix this but it requires that I add a bit of PHP code. Problem is I don't know where or how to add this code.
1. Add one line to your .htaccess file (assuming you're using an apache server and you have not disabled the use of .htaccess files by disallowing overrides; in which case the same line needs to be added to your httpd.conf and the apache server needs to be restarted.).
AddType application/x-httpd-php .htm .html
or create the file with that content if you have none.
2. add the php code you created to your .html files
<?php "your code goes here" ?>
You can split this out over multiple line if you prefer:
<?php "your code goes here" ?>
as you please.
That's it, unless you're not using apache, in which case I've no clue whatsoever.
Now the core of the problem: spammers submitting forms isn't all that easy to solve, and I kinda doubt adding something to the creation of the form alone is going to stop them - I'd assume there's going to be a need for a lot more where you process the form submissions.