public function getHeadImageUrl($size = 46) {
		$headimgurl = $this->headimgurl;
		if($headimgurl && in_array($size, [46, 64, 96, 132])) {
			$headimgurl = preg_replace('/\/0$/', '/' . $size, $headimgurl);
		}

		return $headimgurl;
	}