<?php
#Example #1 :: from outside the class definition
class MyClass
{
const CONST_VALUE = 'A constant value in parent ';
}
#Example #2 :: from inside the class definition
class OtherClass extends MyClass
{
public static $my_static = 'static var in child';
public static function doubleColon()
{
echo parent::CONST_VALUE . "\n";
echo self::$my_static . "\n";
}
}
$classname = 'OtherClass';
echo $classname::doubleColon();
// As of PHP 5.3.0
OtherClass::doubleColon();
