title: php file_get_contents with ajax content
body: <p>I have used <code>file_get_contents</code> function to get content of a website. However it doesn't load the content that displayed in an Ajax.
  How can I get fully content after the ajax complete?</p>
  <pre><code>echo file_get_contents(&quot;thewebsiteurl&quot;);
  </code></pre>
  <p>I mean in the <code>thewebsiteurl</code> has an Ajax, and content ABC displayed after this ajax. When I use <code>file_get_contents</code> to get the content of the <code>thewebsiteurl</code>, I can not get the ABC content.</p>
  <p>Thanks</p>