alone之后的两个对象为什么===返回还是flase
<?php
class Car {
public $name = 'car';
public function __clone() {
$obj = new Car();
$obj->name = $this->name;
}
}
$a = new Car();
$a->name = 'new car';
$b = clone $a;
if ($a == $b) echo '=='; //true
if ($a === $b) echo '==='; //false
