Question

急急急，求教大神，php类中不同方法怎么共用一个属性？

例如我定义一个 $timestamp;在先执行index()方法时赋初值，在执行upload()需要再取出index()给的值。请问这么怎么不行？
class UploadController extends Controller{
public $timestamp;

public function index(){
$this->timestamp = time();
｝
public function upload(){
echo $this->timestamp;
}

Answer 1

function __construct(){
$this->index();

}