img verificatie

<?
session_start();

  $tekens = 'abcdefghijklmnopqrstuvwxyz123456789';
  $code = '';
  
      $teken1 = $tekens
      {
          rand(0, strlen($tekens) - 1)
      };
      $code = $teken1;

      $teken2 = $tekens
      {
          rand(0, strlen($tekens) - 1)
      };
      $code .= $teken2;

      $teken3 = $tekens
      {
          rand(0, strlen($tekens) - 1)
      };
      $code .= $teken3;

      $teken4 = $tekens
      {
          rand(0, strlen($tekens) - 1)
      };
      $code .= $teken4;

      $teken5 = $tekens
      {
          rand(0, strlen($tekens) - 1)
      };
      $code .= $teken5;

      header("Content-type: image/png");
      
      $_SESSION['code'] = $code;
      
      $image = imagecreatetruecolor(140, 40);
      $white = imagecolorallocate($image, 255, 255, 255);
      $black = imagecolorallocate($image, 0, 0, 0);
      $red = imagecolorallocate($image, 255, 0, 0);
      
      imagefill($image, 0, 0, $white);
      imagerectangle($image, 0, 0, 139, 39, $black);
	 
	  //imageline($image, 90, 90, 90, 90, $black);
	 
	  
      
      imagettftext($image, 15, rand(-20, 20), 10, 25, $red, "font".rand(1, 5).".ttf", $teken1);
      imagettftext($image, 15, rand(-20, 20), 35, 25, $red, "font".rand(1, 5).".ttf", $teken2);
      imagettftext($image, 15, rand(-20, 20), 60, 25, $red, "font".rand(1, 5).".ttf", $teken3);
      imagettftext($image, 15, rand(-20, 20), 85, 25, $red, "font".rand(1, 5).".ttf", $teken4);
      imagettftext($image, 15, rand(-20, 20), 110, 25, $red, "font".rand(1, 5).".ttf", $teken5);

      imagepng($image);
      imagedestroy($image);

?> 

<?
session_start();
 
  $tekens = 'abcdefghijklmnopqrstuvwxyz123456789';
  $code = '';
 
      $teken1 = $tekens
      {
          rand(0, strlen($tekens) - 1)
      };
      $code = $teken1;
 
      $teken2 = $tekens
      {
          rand(0, strlen($tekens) - 1)
      };
      $code .= $teken2;
 
      $teken3 = $tekens
      {
          rand(0, strlen($tekens) - 1)
      };
      $code .= $teken3;
 
      $teken4 = $tekens
      {
          rand(0, strlen($tekens) - 1)
      };
      $code .= $teken4;
 
      $teken5 = $tekens
      {
          rand(0, strlen($tekens) - 1)
      };
      $code .= $teken5;
 
      header("Content-type: image/png");
 
      $_SESSION['code'] = $code;
 
      $image = imagecreatetruecolor(140, 40);
      $white = imagecolorallocate($image, 255, 255, 255);
      $black = imagecolorallocate($image, 0, 0, 0);
      $red = imagecolorallocate($image, 255, 0, 0);
 
      imagefill($image, 0, 0, $white);
      imagerectangle($image, 0, 0, 139, 39, $black);
 
	  //imageline($image, 90, 90, 90, 90, $black);
 
 
 
      imagettftext($image, 15, rand(-20, 20), 10, 25, $red, "font".rand(1, 5).".ttf", $teken1);
      imagettftext($image, 15, rand(-20, 20), 35, 25, $red, "font".rand(1, 5).".ttf", $teken2);
      imagettftext($image, 15, rand(-20, 20), 60, 25, $red, "font".rand(1, 5).".ttf", $teken3);
      imagettftext($image, 15, rand(-20, 20), 85, 25, $red, "font".rand(1, 5).".ttf", $teken4);
      imagettftext($image, 15, rand(-20, 20), 110, 25, $red, "font".rand(1, 5).".ttf", $teken5);
 
      imagepng($image);
      imagedestroy($image);
 
?>