$pic_img=trim( $postObj->PicUrl);if($type=="image"){  $pic_url=save_file_to_sever($pic_img,$fromUsername);}   GetRootPath(){  $sRealPath = realpath('./');  $sSelfPath = $_SERVER['PHP_SELF'];  $sSelfPath = substr($sSelfPath, 0, strrpos($sSelfPath, '/'));  return substr($sRealPath, 0, strlen($sRealPath) - strlen($sSelfPath));}function save_file_to_sever($url,$fromid){  $gen=GetRootPath();  $time=time();  $newfname =$gen."/weixin/wx_huodong/xiawucha/".$fromid.$time.'.jpg';  $ch=curl_init();  $timeout=5;  curl_setopt($ch,CURLOPT_URL,$url);  curl_setopt($ch,CURLOPT_RETURNTRANSFER,1);  curl_setopt($ch,CURLOPT_CONNECTTIMEOUT,$timeout);  $img=curl_exec($ch);  curl_close($ch);  $size=strlen($img);  //文件大小  $fp2=@fopen($newfname,'a');  fwrite($fp2,$img);  fclose($fp2);  return "http://www.xxx.com/weixin/wx_huodong/xiawucha/".$fromid.$time.'.jpg';}