修改PHP对象属性名称

Question

在PHP中是否可以更改Objects属性键/名称？例如:

stdClass Object
(
     [cpus] => 2
     [created_at] => 2011-05-23T01:28:29-07:00
     [memory] => 256
)

我希望在Object中更改键created_at,created留下一个看起来像这样的对象:

stdClass Object
(
     [cpus] => 2
     [created] => 2011-05-23T01:28:29-07:00
     [memory] => 256
)

Answer 1

$object->created = $object->created_at;
unset($object->created_at);

但是,类似于适配器类的东西可能是更强大的选择,具体取决于此操作的必要位置和频率.

class PC {
    public $cpus;
    public $created;
    public $memory;

    public function __construct($obj) {
        $this->cpus    = $obj->cpu;
        $this->created = $obj->created_at;
        $this->memory  = $obj->memory;
    }
}

$object = new PC($object);

Answer 2

不,因为键是对值的引用,而不是值本身.你最好复制原件,然后将其取下.

$obj->created = $obj->created_at;
unset(obj->created_at);