Prevent php web contact form spam

Question

I am an amateur web designer, I have searched on stackoverflow.com and other websites and have found many fixes for this issue I\'m having, but none of them have worked (probabl

Answer 1

An even simpler approach that works for me. Literally all spam that I receive(d), had a url in the message. So I filter on that, and have not received any spam messages since. I used to get about 10 a week.

Add this under your line   $error_message = "";   in your php-file:

if(preg_match('/http|www/i',$comments)) {
    $error_message .= "We do not allow a url in the comment.
";
  }

The /i in the preg_match makes it case independent. The 'http' also filters for 'https'.