title: how to use pdf library in php?
body: <p>When i start it's showing this error</p>
  
  <pre><code> &lt;?php
       $p = PDF_new();
   ?&gt;
  </code></pre>
  
  <pre>Fatal error: Call to undefined function PDF_new() in D:\wamp\www\upload.php on line 2</pre>
  
  <p>I am using Wamp Server. I tried in XAMPP also. Is there any directives i have to enable to execute the code ?</p>