<?php
/**
* 静态属性，静态方法
*/
class Human
{
public static $name = 2;
public $money = 3000;
public function changeHead()
{
Human::$name = 9999;
}
public function getHead()
{
echo Human::$name;
}
}
$m1 = new Human();
$m1->changeHead();
echo Human::$name;
$m2 = new Human();
$m2->getHead();
?>
