title: PHP library not being included, "Call to undefined function"
body: <p>I am trying to use the PHP bindings (php-wkhtmltox) for wkhtmltopdf. The README said to install libwkhtmltox and then compile php-wkhtmltox, which I've done. I've also put the compiled .so file into my PHP extension directory, and I've adjusted both my Apache and CLI php.ini files to include the extension.</p>
  
  <p>Now, after reloading and even restarting Apache and running one of the test scripts included with php-wkhtmltox, I get this:</p>
  
  <pre><code>Fatal error: Call to undefined function wkhtmltox_convert() in /path/to/test_pdf.php on line 3
  </code></pre>
  
  <p>Any ideas why this might be happening?</p>