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Hi,

In my form ChronoForms I would like to create two controls.

Subscribing users
I'd like to prevent same user can register himself two or more times.
I found the field to use for check and, on this field, I would like to set a code in which if the user tries to register himself more than once there is a message that says that user already exists.
How can I do?

Control day and month of birth
I have created two DropBox fields to permit to set user his day and month of birth.
Now I would like to enter a code to prevent a user can write a non-existent date (example: April 31st).
How can I do?

Thank you

Hi giuxmian,

The best way to do both of these is probably with Custom Serverside validation.

Bob

Hi Bob,

I've seen your answer.

This is situation:
user set a birth date in dd/mm/yyyy format by dropdow fields (one for day, one for month, one for year)

I'd want to check user has set a correct format date; I don't want user set a date like 31st April or 31 September etc.

I'd to ask to you if you can help me to create a php code that have to do that check.

Thanks

HI giuxmian,

There are some suggestions in this StackOverFlow page.

Bob

Hi Bob,

thanks a lot