PHP Form Builder is a complete library based on a PHP class, which allows you to program any type of form and layout them using simple functions.
PHP Form Builder is NOT a drag & drop form builder.
It is actually much more powerful than a drop form builder.
PHP Form Builder includes the best jQuery plugins available and allows you to implement them in a very simple and elegant way.
Validation (live and server side), sending emails and records in a database are also extremely simplified.
The documentation is suitable for both novice PHP users and experienced programmers.