I did this for the design aesthetics of embedding the captcha. I used CSS to set the captcha image as the background of this input field.
The input element named captcha_code is the target to display the captcha.
#CUSTOM CAPTCHA GENERATOR CODE#
This code shows the HTML to display the form with the Captcha code. I created a contact form and render a Captcha input into it. I have used the PHP session to manage the current captcha session. I generate a random key and supply it to the captcha image layer. I used PHP built-in GD library to create captcha images. The captcha is mandatory to submit the form. I have creates a captcha and displays it in the form. It contains a contact form to get names, email, message subject and messages from the users. It has minimal and structural code by which you can have a clear idea about how it works. I have created this example without using any third-party plugins.
#CUSTOM CAPTCHA GENERATOR HOW TO#
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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