Image Verification - 1.0.3 (Page 1 of 2)

    function createImage($width=160,$height=40,$len=8)
    {
        // send header for our image
        header("Content-type:image/jpeg");

        // generate a random string
        $alphanum = array(
            "A", "B", "C", "D", "E", "F", "G",
            "H", "K", "L", "M", "P", "R",
            "T", "U", "V", "X", "Y",
            "2", "3", "4", "6", "7", "8", "9");
        $string = array_rand($alphanum, $len);

        // create an image 
        $im3=imagecreatetruecolor($width,$height);
        $cee=30;
        $cee2=$cee/2;
        $width+=$cee;
        $height+=$cee;
        $im=imagecreatetruecolor($width,$height);
        $im2=imagecreatetruecolor($width,$height);

        $bck = ImageColorAllocate ($im, 240,240,240);
        $bck2 = ImageColorAllocate ($im, 10,10,10);


        ImageFill($im, 0, 0, $bck); 

        $font = "fonttt3.ttf";
        $str="";

        for($i=0;$i<$len;$i++) {
            $ss=rand(16,20);
            $a=rand(-30, 30);
            $b=sin(deg2rad($a+45))*9;
            $c=cos(deg2rad($a+45))*9;
            $x1=($i)*19+13+$cee2;
            $y1=rand(20,30)+$cee2;
            imagettftext($im,
            $ss,
            $a,
            $x1-$c,
            $y1+$b,
            $bck2,
            $font,
            $alphanum[$string[$i]]);
            $str.=$alphanum[$string[$i]];

            for ($j=0;$j<40;$j++){
                $xx=$x1+rand(-12,12);
                $yy=$y1+rand(-16,12);
                if ($xx>=$width||$yy>=$height||$xx<0||$yy<0) continue;
                ImageSetPixel($im, $xx, $yy, $bck2);
            }


        }
        for ($i=0;$i<25;$i++)
        {
            $xl=rand(70,$width-3);
            $yl=rand(30,$height-3);
            $x1=rand(2,$width-$xl-2);
            $y1=rand(2,$height-$yl-2);
            imagecopy($im2,$im,0,0,0,0,$width,$height);
            imagecopymerge ($im, $im2, $x1, $y1, $x1+$i%3-1, $y1+($i+2)%2-1, $xl, $yl,90);
        }
        imagecopy($im3,$im,0,0,$cee2,$cee2+$cee2/3*2,$width-$cee,$height-$cee);


        imagejpeg($im3);
        // destroy images
        imagedestroy($im);
        imagedestroy($im2);
        imagedestroy($im3);

        // return the random text generated
        return $this->text=$str;
    }