Comments on: SPF30 – A Spam Blocking/Prevention PHP Library

By: Michael

Michael — Wed, 08 Jun 2011 00:09:39 +0000

I am attempting to implement jquery spf 30 to a contact form; however, I’m having difficultly. I have defaulted to the example above for troubleshooting.

Line 9 spam::validate($_POST); Returns:

Catchable fatal error: Argument 1 passed to spam::validate() must be an instance of Input, array given, called in /sitepath/test/form-handler.php on line 9 and defined in /sitepath/spf30.php on line 51

I think I missing a basic step somewhere. I’m not certain how to cast $_POST as an input.

By: cballou

cballou — Wed, 07 Jul 2010 16:48:16 +0000

Thanks for the comment rhopek. I'll fix the first typo right after submission of this message. In regards to your second issue, there's another typo which attempts to pass $this->input instead of $_POST to the decryption function. My sincere apologies, I can see where this would cause quite a problem. There's also an undocumented requirement for utilizing the library which I failed to mention in the initial post. You must have the PHP mcrypt module installed to be able to use the SPF30 library. Hope this resolves your issues. Let me know!

By: rhopek

rhopek — Wed, 07 Jul 2010 15:37:35 +0000

Two things:

1) You have an error in your form.php. You have ‘Email Address’ as the label for the ‘Phone’ field.

2) The form-handler.php doesn’t seem to actually contain any code to “decrypt” in the “// no exceptions thrown, use decrypted form data as you please” section. That page contains two dumps, but only the first one does anything.

By: cballou

cballou — Sat, 26 Jun 2010 21:38:28 +0000

Adam, the only thing that will no longer function with javascript turned off is encrypting field values. Both the spam prevention and field name encryption will still function as intended. I hope this answers your question!

By: Adam

Adam — Sat, 26 Jun 2010 18:17:28 +0000

Does this still work if the end-user has disabled javascript?