Own form verification


I like the concept of Grav, but I still have some questions:

** How do I add a form verification with PHP?**

I have a multi-step form on my website. Due to process reasons I cannot move them all into one form. Therefore I have to split them into several single steps.

  • How do I load a plugin? I understand how to write one with php, but how do I load a specific plugin in a modular page? Anything like {% check_step3 %}?
  • How do I load the variables from the previous step?