Convert php URL to generate QR code

public function erweima(){
		$id=I('get.phone');
		vendor("phpqrcode.phpqrcode");
		$code = new \QRcode();
		// include ( APP_PATH . 'Home/Conf/phpqrcode/phpqrcode.php' );//定义纠错级别
		$errorLevel = "L";//定义生成图片宽度和高度;默认为3
		$size = "4";//定义生成内容
		$content='http://' . I( 'server.HTTP_HOST' ) . U( 'Login/register' ) . '?phone='.$id;
		//调用QRcode类的静态方法png生成二维码图片//
		$code->png($content, false, $errorLevel, $size);//生成网址类型
		$url="http://jingyan.baidu.com/article/48a42057bff0d2a925250464.html";
		$url.="rn";
		$url.="http://jingyan.baidu.com/article/acf728fd22fae8f8e510a3d6.html";
		$url.="rn";
		$url.="http://jingyan.baidu.com/article/92255446953d53851648f412.html";
		print_r($code->png($url, false, $errorLevel, $size));
	}