Yes, that means you don’t have the “bcmath” module installed. Talk to your web host about adding the module in your PHP configuration.
Dear xnau,
Many thanks for the plugin!
I’m having the same issue, but I’m afraid I cannot change anything in my web host.
Do you recommend any other good math captcha to use with the plugin?
Thanks again.
Hi Sandra,
Unless you are a developer, there isn’t any easy way to integrate a CAPTCHA from another plugin with the Participants Database. The next release of the plugin does include a fallback method so it doesn’t need the bcmath module, but that will be several weeks before it’s released.
I built the function not realizing there were web hosts out there that don’t include the module for some reason.
You can use a “static” math captcha…just define a field that asks for a math problem to be solved, then set up a regex to validate the answer. For instance:
“What is the product of three and 9?”
regex: #^27$#
you could change it manually every once in a while.
Oh, I see.
Well, the regex solution is a good option.
Thanks a lot!
