Fatal error: Uncaught Error: Call to undefined function imagecreate() in D:\Websites\WWW\captcha\captcha.php:46 Stack trace: #0 D:\Websites\WWW\captcha\captcha.php(77): CaptchaSecurityImages->CaptchaSecurityImages('94', '36', '5') #1 {main} thrown in D:\Websites\WWW\captcha\captcha.php on line 46