How to use AJAX validation
With Formhandler you can configure validation to be done with AJAX calls rather than having to submit the form.
How to use a master template
Master templates allow you to predefine how your form fields look like and add them to various forms while having their HTML code defined in a central place.
How to use ###is_error### markers
Cool forms don't only show error messages, but highlight the fields which contain errors. Use ###is_error### markers to achieve this and do other awesome stuff.
How to upgrade from th_mailformplus to Formhandler
For those of you who are new to Formhandler and want to get rid of the obsolete and insecure th_mailformplus forms, we provide a little upgrade guide.
How to store data into more than one DB table
How do you store form data in separate DB tables to create a 1:n relation? Read more to find out.
How to set up SPAM protection
SPAM is a bad thing. Formhandler offers various methods to block SPAM bots.
How to set up error checks
It is easy to set up validation rules and error messages for your form. Read this How-To and you are ready for action.