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PHP Klasse Form Spam Bot Blocker

geschrieben von Micha am 22. April 2007 | kein Kommentar

Beschreibung:

This class can be generate forms that prevent submission by spam robots without requiring human users to enter special values.

The class can generate an hidden input that contains an encoded value of the user browser, user computer IP address and the current time.

The class verifies whether these browser name and IP address are still the same, and also whether the form is being submitted by a normal time interval after it was create, like when it is submitted by a real human user.

The class also generates a text input that are invisible for the user. A human user would not fill this input. If the input is submitted with a value, it was certainly a robot.

When the class detects a situation that demonstrates the form was submitted by a robot, the application should not accept the form submission.

Webseite der Klasse bei phpclasses.org

Ich werde mir diese Klasse einmal genauer anschauen und vielleicht in WordPress integrieren.