title: Private vs Private Static
body: <p>I always use <code>private $MyVar = false;</code> when declaring <strong>private variables</strong> which only that specific class can use. But recently i saw some examples where people use <code>private static $MyVar = false;</code>.</p>
  
  <p>I don't get it, what's the difference? Both of them can only be used inside that class, so whats the point in adding <code>static</code>?</p>