带进度条多文件上传服务器返回json数据包括文件大小、路径、文件名、文件类型，可自行修改外貌哦

<?php $files=$_FILES["Filedata"]; if ($files["error"] > 0) { echo "Error: " . $files["error"] . "<br />"; } else { $backstr["filename"]=$files["name"]; if(($files["size"] / 1024)<1024){ $backstr["Size"]=floor($files["size"] / 1024) . " Kb"; }else{ $backstr["Size"]=floor($files["size"] /1024/1024) . " Mb"; } $backstr["url"]= getFullUrl()."/file/".$files["name"]; $backstr["Type"]=$backstr["url"]; echo json_encode($backstr); $file_name=iconv("UTF-8","GB2312",$files["name"]); move_uploaded_file( $files["tmp_name"],dirname(__FILE__)."/file/".$file_name); } function getFullUrl() { return (isset($_SERVER['HTTPS']) ? 'https://' : 'http://'). (isset($_SERVER['REMOTE_USER']) ? $_SERVER['REMOTE_USER'].'@' : ''). (isset($_SERVER['HTTP_HOST']) ? $_SERVER['HTTP_HOST'] : ($_SERVER['SERVER_NAME']. (isset($_SERVER['HTTPS']) && $_SERVER['SERVER_PORT'] == 443 || $_SERVER['SERVER_PORT'] == 80 ? '' : ':'.$_SERVER['SERVER_PORT']))). substr($_SERVER['SCRIPT_NAME'],0, strrpos($_SERVER['SCRIPT_NAME'], '/')); } ?>