Static Keyword in PHP

Static Keyword in PHP :

Declaring class members or methods as static makes them accessible without needing an instantiation of the class. A member declared as static can not be accessed with an instantiated class object (though a static method can).

Try out following example −

<?php
   class Foo {
      public static $my_static = \'foo\';
      
      public function staticValue() {
         return self::$my_static;
      }
   }
	
   print Foo::$my_static . \"\\n\";
   $foo = new Foo();
   
   print $foo->staticValue() . \"\\n\";
?>