I created a form using Web Form Builder and am hosting it on my own site to allow me to execute some PHP code to provide dynamic content. Specifically, my form is a convention registration page. In addition to allowing the user to register for the convention, it allows them to choose from various additional activities, some of which require a fee be paid. However, each activity has limited availability, i.e., only a limited number of persons is allowed to participate in any given activity. If there aren't positions available for a registrant to attend a particular activity, I would like to automatically add them to a wait list, and reflect on their order summary/invoice that they are wait-listed and will not be charged the fee until such time as they may be admitted into the activity.

To accomplish this, I think I need to intercept the form after it has been submitted, review the database to determine whether or not space is available in the specified activity, and either confirm they can attend that activity and charge them accordingly or, if no space is available, indicate on the order summary that they have been placed on a wait list and are not being charged the fee. Does this seem like the right approach? If not, does anyone have other suggestions? And, if so, how do I implement this capability? I've explored the code Web Form Builder provides to process the form, but I have not determined how to intercept the form after submittal but before sending it on to PayPal. And, once intercepted and verified/updated, how do I then continue the process of sending the registrant to PayPal's site to make payment?

I found this in a post dated March 20, 2015. But, it appears the zip file is no longer available on your site. Would you be able to make it available again?

The zip file downloads for me.

and downloads ok here in Indonesia

It downloads for me too. I'm wondering whether some browser or security software prevents downloading unless the 'http://' is replaced by 'https://'.

Frank

Thank you. I’m not sure what happened when I tried this Tuesday, but I am now able to download the file. Attribute it to user error. ????

For the record...I could not download it the other day either... it simply refreshed the page when clicking...but since then (maybe Wednesday?) It down loads ...must have been a server hiccup that was fixed.