if (isset($_SESSION['cptch'])) {
$_GET['image'] = $_SESSION['cptch'];
} else {
$_SESSION['cptch'] = rand(10, 99) . substr($letters, rand(1, 20), 1) . substr($letters, rand(1, 20), 1) . rand(10, 99);
$_SESSION['c_s_id'] = md5($_SESSION['cptch']);
}
}
$text = $_GET['image'];
$usedfont = $_GET['font'];
$fontsize = $_GET['size'];
$tmp_fontcolor = $_GET['color'];
$bgcolor = $_GET['rgb_bg'];
header("Content-Type: image/png");
$font = '../fonts/' . $usedfont . '.ttf';
// Calc the text size
$box = ImageTTFbbox($fontsize, 0, $font, $text);
// Calc some props for the image
$width = $box[2] - $box[0];
$height = $box[1] - $box[7];
// 10 px empty space on each side
$imagewidth = $width + 20;
$imageheight = $height + 5;
// Create the image
$pic = ImageCreate($imagewidth, $imageheight);
// Set the colors
// Backgroundcolor
$rgb = explode(',', $bgcolor);
$bgcolor = ImageColorAllocate($pic, $rgb[0], $rgb[1], $rgb[2]);
// Fontcolor
switch ($tmp_fontcolor) {
case "red":
function create_image()
{
// build a PNG image from the generated codestring
header('Content-type: image/png');
$box = ImageTTFbbox($this->fontsize, 0, $this->fontfile, $this->article);
$src_img = ImageCreate($box[2] + 11, abs($box[7] - $box[1]) + 6);
$black = ImageColorAllocate($src_img, 0x0, 0x0, 0x0);
$white = ImageColorAllocate($src_img, 0xff, 0xff, 0xff);
ImageFill($src_img, 0, 0, $white);
ImageColorTransparent($src_img, $white);
ImageTTFText($src_img, $this->fontsize, 0, 3, abs($box[7]), $black, $this->fontfile, $this->article);
ImagePNG($src_img);
ImageDestroy($src_img);
}
