title: GD extension for PHP 5.6.20
body: <p>I have a vagrant box with LAMP. Linux distribution is Ubuntu 14.04.1
  My PHP project has got a composer package and it's package use gd extension. I install php5-gd and added to php.ini file but it's not sold the problem. I type &quot;php -v&quot; to terminal it's return:</p>
  <blockquote>
  <p>PHP Warning:  PHP Startup: gd: Unable to initialize module</p>
  <p>Module compiled with module API=20121212</p>
  <p>PHP    compiled with module API=20131226</p>
  <p>These options need to match in Unknown on line 0</p>
  <p>PHP 5.6.20-3+donate.sury.org~trusty+1</p>
  </blockquote>
  <p>Does anyone help me? I think this problem maybe experienced from anyone before me.</p>