Function/method description when hovering over it at the call site?

Question

Sublime Text

Maybe a very stupid question... I often see similar comments in the code

/**
   * some desctiption of method
   * 
   * Examples:
   * ....
   *
   * @param string .....
   * @param mixed  $arg,... unlimited number of arguments
   * @return resource|FALSE
   */

I recently found out that in other editors, when you hover over a function call, a drop-down appears with everything described above. I want Sublime to do the same. Googled different variations of sublime popup doc comments hover, but didn't find anything