title: PHP: GD Library:Increase font size in ImageString function
body: <p>I have the following block of code which will output a captcha image </p>
  
  <pre><code> $im = @imagecreatefromjpeg("captcha.jpg"); 
   $rand = _generateRandom(3);
   $_SESSION['captcha'] = $rand;
   ImageString($im, 5, 2, 2, $rand[0]." ".$rand[1]." ".$rand[2]." ", ImageColorAllocate ($im, 23, 85, 160));
  </code></pre>
  
  <p>Now i want to increaese the font size.I have used the second paramater as 5 .I know that we can use from 1 to 5 only.But i want to increaese the \font size a bit more.Also i want to change the font also to some other like Arial or Verdana.How to do that ? Thanks in advance</p>