echo getWXImg('http://wx.qlogo.cn/mmopen/g3MonUZtNHkdmzicIlibx6iaFqAc56vxLSUfpb6n5WKSYVY0ChQKkiaJSgQ1dZuTOgvLLrhJbERQQ4eMsv84eavHiaiceqxibJxCfHe/0');function getWXImg($remoteImg){	if(!$remoteImg){		return '/images/xx_29.jpg';	}	$filename = DEDEROOT.'/app/images/wx/'.md5($remoteImg).'.jpg';	if(file_exists($filename)){		return $filename;	}	//方法一 	// $get_file = @file_get_contents($remoteImg);	// if($get_file){	// 	$fp = @fopen($filename,"a");	// 	@fwrite($fp,$get_file);	// 	@fclose($fp);	// }	// 方法二	ob_start();	readfile($remoteImg);	$get_file = ob_get_contents();	ob_end_clean();	$fp = @fopen($filename,"a");	fwrite($fp,$get_file);	fclose($fp);	return $filename;}