<?php /** * Elgg captcha plugin graphics file generator * * @package ElggCaptcha */ global $CONFIG; $token = get_input('captcha_token'); // Output captcha if ($token) { // Set correct header header("Content-type: image/jpeg"); // Generate captcha $captcha = captcha_generate_captcha($token); // Pick a random background image $n = rand(1, $CONFIG->captcha_num_bg); $image = imagecreatefromjpeg($CONFIG->pluginspath . "captcha/backgrounds/bg$n.jpg"); // Create a colour (black so its not a simple matter of masking out one colour and ocring the rest) $colour = imagecolorallocate($image, 0,0,0); // Write captcha to image //imagestring($image, 5, 30, 4, $captcha, $black); imagettftext($image, 30, 0, 10, 30, $colour, $CONFIG->pluginspath . "captcha/fonts/1.ttf", $captcha); // Output image imagejpeg($image); // Free memory imagedestroy($image); }