摘要：<?phpclass Hubby{ private function __construct() { } private function __clone() { // TODO: Implement __cl
<?php
class Hubby
{
private function __construct()
{
}
private function __clone()
{
// TODO: Implement __clone() method.
}
protected static $instance = null;
public static function getInstance()
{
if (is_null(static::$instance)) {
static::$instance = new static();
}
return static::$instance;
}
}
$hubby1 = Hubby::getInstance();
$hubby2 = Hubby::getInstance();
echo ($hubby1 instanceof Hubby)?'是':'不是';
echo '<hr>';
echo ($hubby2 instanceof Hubby)?'是':'不是';
echo '<hr>';
echo ($hubby1 ===$hubby2)?'完全相等':'不相等';
echo '<hr>';
var_dump($hubby1,$hubby2);
批改老师：天蓬老师批改时间：2018-12-16 10:49:18
老师总结：相信你对单例模式有了了解,在js中,其实都是单例的
