print Foo::$my_static

$classname = 'Foo';
  print $classname::$my_static

public function staticValue() {
     return self::$my_static;
     }
 }

  class Bar extends Foo
 {
    public function fooStatic() {
    return parent::$my_static;
  }
}


 print Foo::$my_static . "n";

 $foo = new Foo();
 print $foo::$my_static . "n";
 $classname = 'Foo';
 print $classname::$my_static . "n"; // As of PHP 5.3.0

     ?>

<?php
   class Foo{
static $myVar="foo";
public static function aStaticMethod(){
    return self::$myVar;
}
  }

 $foo=new Foo;
 print $foo->aStaticMethod();
?>