dvayne Posted February 12, 2008 Share Posted February 12, 2008 <?php session_start(); // make a string with all the characters that we // want to use as the verification code $alphanum = "ABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789abcdefghijklmnopqrstuvwxyz"; // generate the verication code $rand = substr(str_shuffle($alphanum), 0, 6); // choose one of four background images $bgNum = rand(3, 4); // create an image object using the chosen background $image = imagecreatefromjpeg("background$bgNum.jpg"); $textColor = imagecolorallocate ($image, 0, 0, 0); // write the code on the background image imagestring ($image, 5, 5, 8, $rand, $textColor); // create the hash for the verification code // and put it in the session $_SESSION['image_random_value'] = md5($rand); // send several headers to make sure the image is not cached // taken directly from the PHP Manual // Date in the past header("Expires: Mon, 26 Jul 1997 05:00:00 GMT"); // always modified header("Last-Modified: " . gmdate("D, d M Y H:i:s") . " GMT"); // HTTP/1.1 header("Cache-Control: no-store, no-cache, must-revalidate"); header("Cache-Control: post-check=0, pre-check=0", false); // HTTP/1.0 header("Pragma: no-cache"); // send the content type header so the image is displayed properly header('Content-type: image/jpeg'); // send the image to the browser imagejpeg($image); // destroy the image to free up the memory imagedestroy($image); ?> is it possible to increase the font size of the string? any help would be appreciated.. Quote Link to comment Share on other sites More sharing options...
elpaisa Posted February 12, 2008 Share Posted February 12, 2008 $font_size = "8"; // write the code on the background image imagestring ($image, $font_size, 5, 8, $rand, $textColor); Quote Link to comment Share on other sites More sharing options...
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