Validating a form in php Free access of account for online sex chat
The PHP script in ‘captcha_code_file.php’ creates the image for the captcha and saves the code in a session variable named ‘6_letters_code’.
Spammers can send thousands of emails using this exploit.
If the codes match, then we proceed with emailing the form submission. Here is the code that does the server side processing: $image_width = 120; $image_height = 40; $characters_on_image = 6; $font = './monofont.ttf'; //The characters that can be used in the CAPTCHA code.