title: How to find out if a method is deprecated?
body: <p>For example, I would like to find out if the function 
  <code>mime_content_type</code> is deprecated.</p>
  
  <p>In the <a href="http://php.net/manual/en/function.mime-content-type.php" rel="nofollow">English manual</a>, it seems not marked as deprecated. This is also true for all other languages, except in German, Chinese and Spanish - there it is marked as deprecated.</p>
  
  <p>How can I find out which manual is correct? Can I find maybe a history of the manual? So that I can see if it was once marked as deprecated and then the note was removed again?</p>