title: strip_tags not working
body: <p>I am truing to filter html characters out like this</p>
  
  <pre><code>$user = $_POST["user"]; //Get username from &lt;form&gt;
  mysql_real_escape_string($user); //Against SQL injection
  strip_tags($user); //Filter html characters out
  </code></pre>
  
  <p>But for some reason this is not filtering html characters out. I don't know why, could it by <code>mysql_real_escape_string</code>?</p>