<?php
namespace app\common\helpers;
use Yii;
class Cookie
{
	static function getInitCls()
	{
		static $initCls = NULL;
		if(!isset($initCls)) $initCls = new Cookie();
		return $initCls;
	}

	//设置cookie
	public static function setCookie($name,$value,$expire=0)
	{
        ob_clean();
        $cookies = Yii::$app->response->cookies;
        $args = [
            'name' => $name,
            'value' => $value,
        ];
        if(!empty($expire))
        {
            $args['expire'] =  TIMESTAMP+$expire;
        }
        if(defined('COOKIE_DOMAIN')&&COOKIE_DOMAIN!='')
        {
            $args['domain'] =  COOKIE_DOMAIN;
        }
        $cookies->add(new \yii\web\Cookie($args));
		return true;
	}

	//读取cookie值
	public static function getCookie($name)
	{
        $cookies = Yii::$app->request->cookies;
        return $cookies->getValue($name);
	}

	//销毁cookie
	public static function deleteCookie($name)
	{
        if(defined('COOKIE_DOMAIN')&&COOKIE_DOMAIN!='')
		{
            $cookie =  new \yii\web\Cookie([
                'name' => $name,
                'domain' => COOKIE_DOMAIN,
            ]);
            Yii::$app->response->cookies->remove($cookie);
		}
		else
		{
            $cookies  = Yii::$app->response->cookies;
            unset($cookies[$name]);
		}

	}
}