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Captcha is not only annoying, it is useless and quite retarded. As Captcha evolves, so do the bots and scrapers that we are protecting our web forms from. So how to be prevent viagra and poker spammers from spamming our web forms? It is very easy and all you need is a MYSQL database and a simple php script.
Bots are not like regular users, the send requests directly to the parsing url of the web form. They do not fill in the form the way a real person would. In fact, the bots do not go through the actual web form at all. They send a request to the web form’s parser script. So the objective here, is to make sure that users hit the actual form first and that they cannot send data directly to the form parser.
Rest of the article and code snippets:
http://crackfeed.com/article/catcha-free-web-form-using-php-and-mysql
Bots are not like regular users, the send requests directly to the parsing url of the web form. They do not fill in the form the way a real person would. In fact, the bots do not go through the actual web form at all. They send a request to the web form’s parser script. So the objective here, is to make sure that users hit the actual form first and that they cannot send data directly to the form parser.
Rest of the article and code snippets:
http://crackfeed.com/article/catcha-free-web-form-using-php-and-mysql
