![]() This is to know how to generate Captcha code using core PHP. PHP example to generate Captcha code for a contact form ![]() This validation will help to capture the robot not entering the captcha code. On submitting the user input, it validates the captcha code entered by the user. It prevents anonymous access and stops robots from sending data.ĬAPTCHA is an unpredictable random code. It may annoy your regular users due to the unavailability of the website.Ĭaptcha is one of the best remedies for this hazard. Sometimes it will increase server load and let it down. ![]() For example, XSS attack or SQL injection and more. Otherwise, people will use robots to push the bulk of unwanted data into the website.Īllowing malicious access will cause a lot of problems. When allowing users to enter data into our website, we need to check whether the data is entered by the human.
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