PHP 上传多个文件的问题

<html>
<head>
<title>HTML Form for uploading image to server</title>
</head>
<body>
<form action="" method="post" enctype="multipart/form-data">
<p>Pictures:
<input type="file" name="pictures[]" />
<input type="file" name="pictures[]" />
<input type="file" name="pictures[]" />
<input type="submit" value="Send" />
</p>
</form>
<?php
//places files into same dir as form resides
foreach ($_FILES["pictures"]["error"] as $key => $error) {
   if ($error == UPLOAD_ERR_OK) {
       echo"$error_codes[$error]";
       move_uploaded_file(
         $_FILES["pictures"]["tmp_name"][$key],
         $_FILES["pictures"]["name"][$key]
       ) or die("Problems with upload");
   }
}
?>
</body>
</html>

解决方案 »

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楼主说的是动态添加上传文件域吧。这个小东西合适吗<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML>
<HEAD>
  <TITLE> 动态增加文件上传域</TITLE>
  <META NAME="Generator" CONTENT="EditPlus">
  <META NAME="Author" CONTENT="">
  <META NAME="Keywords" CONTENT="">
  <META NAME="Description" CONTENT="">
</HEAD> <BODY>
  <script language="javascript" type="text/javascript">
     function addfile(){
         var str='<input type="file" name="file" size="20"><br>';         document.getElementById("myfile").insertAdjacentHTML("beforeEnd",str);
   }  </script>
  <input type="button"  value="增行"  onclick="addfile()"/>
  <a id="myfile">
  <input type="file"  name="file"><br/></a>
</BODY>
</HTML>
谢谢session1983  我要的就是这个，还想问一下  有没有减少的？我想更完善一点~~~
你可要的是这个？<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML>
<HEAD>
  <TITLE> 动态增加文件上传域</TITLE>
  <META NAME="Generator" CONTENT="EditPlus">
  <META NAME="Author" CONTENT="">
  <META NAME="Keywords" CONTENT="">
  <META NAME="Description" CONTENT="">
</HEAD> <BODY>
  <script language="javascript" type="text/javascript">
     function addfile(){
         var str='<input type="file" name="file" size="20"><br>';
         document.getElementById("myfile").insertAdjacentHTML("beforeEnd",str);
   }
function delfile(){
  document.getElementById("file").removeNode(true)  ;
}
  </script>
  <input type="button"  value="增行"  onclick="addfile()"/>
  <input type="button" value="减行" onclick="delfile()"/>
  <a id="myfile">
  <input type="file"  name="file" id="file"><br/></a>
</BODY>
</HTML>
可能这个样子的会好些．
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML>
<HEAD>
  <TITLE> 动态增加文件上传域</TITLE>
  <META NAME="Generator" CONTENT="EditPlus">
  <META NAME="Author" CONTENT="">
  <META NAME="Keywords" CONTENT="">
  <META NAME="Description" CONTENT="">
</HEAD> <BODY>
<form>
  <input   type="button"   onclick="addline()"   value="增加一行">
  <table   border="0"   id="test">
      <tr>
          <td   colspan="2"><input   type="file"   name="myfile"></td>
      </tr>
  </table>
  <input   type="submit">
  </form>
  <script>
  function   addline(content){
  newline=document.all.test.insertRow();
  newline.insertCell().innerHTML='<input   type="file"   name="myfile"><input   type="button"   value="删除此行"   onclick="del()">'

  }
  function   del(){
  document.all.test.deleteRow(window.event.srcElement.parentElement.parentElement.rowIndex);
  }
  </script>
</BODY>
</HTML>
  恩就是这样的  谢谢zmouki
凑下热闹。<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312" />
<title>无标题文档</title>
</head>
<script>
var $ = function(id)
{
return document.getElementById(id);
}
var add_input = function()
{
var _tr    = document.createElement("tr");
var _td    = document.createElement("td");
var _input = document.createElement("input");
_input.type ="file";
_td.appendChild(_input);
_tr.appendChild(_td);
if(document.all)//IE
{
$("files").childNodes[0].appendChild(_tr);
}
else//firefox
{
$("files").appendChild(_tr);
}
}
var remove_input = function()
{
if(document.all)//ie
{
$("files").childNodes[0].removeChild($("files").childNodes[0].lastChild);
}
else//firefox
{
$("files").removeChild($("files").lastChild);
}

}

window.onload = function()
{
if(document.all)
{
document.getElementsByTagName("input")[1].attachEvent("onclick",add_input);
document.getElementsByTagName("input")[2].attachEvent("onclick",remove_input);
}
else
{
document.getElementsByTagName("input")[1].addEventListener("click",add_input,false);
document.getElementsByTagName("input")[2].addEventListener("click",remove_input,false);
}

}</script>
<body>
<table id="files">
<tr>
<td>
<input type="file" />
</td>
</tr>
</table>
<input type="button" />
<input type="button" />
</body>
</html>
提出一个疑问. 这个动态增加文件上传域的表单  后台PHP处理文件应该怎么做呢?怎么来获取这个动态增加文件上传域的 name尼？
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Frameset//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-frameset.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
    <head>
        <meta http-equiv="Content-Type" content="text/html; charset=GBK" />
        <title></title>
    </head>
    <script language="javascript">
        function chick(){
            var _count = document.getElementById("files").getElementsByTagName("input");
            var len = _count.length - 1;
            var _obj = _count[len];

            var ie = navigator.appName == "Microsoft Internet Explorer" ? true : false;
            if (ie) {
                _obj.click();
            }
            else {
                var a = document.createEvent("MouseEvents");
                a.initEvent("click", true, true);
                _obj.dispatchEvent(a);
            }

            var _path = _obj.value;
            var _parent = document.getElementById("path_table").firstChild;
            var row = document.createElement("tr");
            row.setAttribute("id",len);
            var cell1 = document.createElement("td");
cell1.style.borderBottom = "solid";
cell1.style.borderBottomWidth = "1px";
            var cell2 = document.createElement("td");
cell2.style.borderBottom = "solid";
cell2.style.borderBottomWidth = "1px";
            var _a = document.createElement("a");
            _a.innerHTML = "取消";
            _a.href = "javascript:remove("+len+")";
            var _text = document.createTextNode(_path);
            cell1.appendChild(_text);
            cell2.appendChild(_a);
            row.appendChild(cell1);
            row.appendChild(cell2);
            _parent.appendChild(row);

        }

        function create(){
            //统计现有input
            var length = document.getElementById("files").getElementsByTagName("input").length;
            var _id = "";
            if (length == 0) {
                _id = "0"
            } else {
                _id = length;
            }
            //添加一个新的INPUT
            var _td = document.getElementById("input_td");
            var _input = document.createElement("input");
            _input.setAttribute("type", "file");
            _input.setAttribute("name", "pics[]");
            alert(_input.getAttribute('name'));
            _input.setAttribute("id", _id);

            _td.appendChild(_input);

            chick();
        }

        function remove(obj) {
            var _rem = document.getElementById(obj);
            var _remt = document.getElementById("path_table").firstChild;
            _remt.removeChild(_rem);

            var _inputs = document.getElementById("files").getElementsByTagName("input");
            for (var i = 0; i < _inputs.length; i++) {
                var tmp = _inputs[i];
                if (tmp.getAttribute("id") == obj) {
                    document.getElementById("input_td").removeChild(tmp);
                    break;
                }
            }
        }

    </script>
    <body>
        <form name="fileupload" method="post" action="uploadservlet.php" enctype="multipart/form-data">
            <table cellpadding="0" cellspacing="0" border="0" width="600">
                <tr>
                    <td>
                        文件上传
                    </td>
                </tr>
                <tr>
                    <td>
                        <table cellpadding="0" cellspacing="0" border="0"
                               width="100%" id="path_table" style="border-bottom:solid; border-bottom-width:1px;">
                            <tr id="first_tr">
                                <td width="80%" style="border-bottom:solid; border-bottom-width:1px;">
                                    文件路径
                                </td>
                                <td width="20%" style="border-bottom:solid; border-bottom-width:1px;">
                                    操作
                                </td>
                            </tr>
                        </table>
                    </td>
                </tr>
                <tr>
                    <td>
                        <input name="button" type="button" onclick="create();" value="选择文件" />
                        <input type="submit" value="提交" />
                    </td>
                </tr>
                <tr>
                    <td>
                        <table cellpadding="0" cellspacing="0" border="0" id="files" style="display:none;">
                            <tr>
                                <td id="input_td">
                                </td>
                            </tr>
                        </table>
                    </td>
                </tr>
            </table>
        </form>
    </body>
</html>
这个可好？