andthendoingsomethingtoit,andthensendingresultstotheclientif($_SERVER['HTTP_ORIGIN']=="http://arunranga.com"){$postData
/upload',method:'POST',headers:{'Content-Type':'application/x-www-form-urlencoded','Content-Length':postData.length
extraHeaders字符串(可选)-额外的标题由“\n”分隔postData(UploadRawData[]|UploadFile[]|UploadFileSystem[]|UploadBlob[]