How to know user's language?
<blockquote>
  <p><strong>Possible Duplicate:</strong><br>
  <a href="http://stackoverflow.com/questions/1043339/javascript-for-detecting-browser-language-preference">JavaScript for detecting browser language preference</a><br>
  <a href="http://stackoverflow.com/questions/3770513/detect-browser-language-in-php">Detect Browser Language in PHP</a><br>
  <a href="http://stackoverflow.com/questions/8582405/whats-best-method-to-detect-language">What&#39;s best method to detect language?</a>  </p>
</blockquote>



<p>I have created a website that anyone in the world can visit.</p>

<p>So, I need a way to know approximately what is the user's language without asking them.</p>

<p>Obviously, there is also a link that sets the language via cookie.</p>
