text: <?php
  // Declare the interface 'iTemplate'
  interface iTemplate
  {
      public function setVariable($name, $var);
      public function
          getHtml($template);
  }
  
  interface a
  {
      public function foo();
  }
  
  interface b extends a
  {
      public function baz(Baz $baz);
  }
  
  // short desc for class that implement a unique interface
  class c implements b
  {
      public function foo()
      {
      }
  
      public function baz(Baz $baz)
      {
      }
  }
  