<?php

class MyClass
{
    public $prop = "prop";
    const LOL = "lol const";
    const CONSTANT = 'значение константы';
    const BR = "</BR>";
    function get_this()
    {
        return isset($this) ? get_class($this) . MyClass::BR : " this нету ";
    }
}
echo MyClass::get_this();
echo MyClass::BR;
echo MyClass::LOL;
echo MyClass::BR;
$MyObj = new MyClass();
echo $MyObj->get_this();
echo MyClass::BR;
echo "**********************************************************************";
echo MyClass::BR;
$obj =& $MyObj;
$obj2 =& $MyObj;
# var_dump($obj);
# echo $obj::get_this();
# echo $obj2::get_this();
$obj2 = 5;
var_dump($MyObj);
echo "**********************************************************************";
echo MyClass::BR;