<input type="text" name="textfield" id="textfield" value="5" maxlength="1" />
<input type="button" name="button1" id="button1" value="设置"/>
for($i=1;$i<=5；$i++)
{ echo "<tr>";
echo "<td><input type='file' name='file.$i' id='file'/></td>"
echo "</tr>";
}
这边怎么写才能使text数值通过botton影响FILE数量
给你找了个例子 你参考参考吧
<!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>文档上传</title>
</head>
<body>
<script language="javascript"><!--
动态添加文件选择控件-->
function AddRow()
{
var eNewRow = tblData.insertRow();
for (var i=0;i<1;i++)
{
var eNewCell = eNewRow.insertCell();
eNewCell.innerHTML = "<tr><td><input type='file' name='filelist[]' size='50'/></td></tr>";
}
}
// --></script>
<form name="myform" method="post" action="uploadfile.php" enctype="multipart/form-data" >
<table id="tblData" width="400" border="0">
<!-- 将上传文件必须用post的方法和enctype="multipart/form-data" -->
<!-- 将本页的网址传给uploadfile.php-->
<input name="postadd" type="hidden" value="<?php echo "http://".$_SERVER['HTTP_HOST'].$_SERVER["PHP_SELF"]; ?>" />
<tr><td>文件上传列表
<input type="button" name="addfile" onclick="AddRow()" value="添加列表" /></td></tr>
<!-- filelist[]必须是一个数组-->
<tr><td><input type="file" name="filelist[]" size="50" /></td></tr>
</table>
<input type="submit" name="submitfile" value="提交文件" />
</form>
</body>
</html>
<!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>文档上传</title>
</head>
<body>
<script language="javascript"><!--
动态添加文件选择控件-->
function AddRow()
{
var eNewRow = tblData.insertRow();
for (var i=0;i<1;i++)
{
var eNewCell = eNewRow.insertCell();
eNewCell.innerHTML = "<tr><td><input type='file' name='filelist[]' size='50'/></td></tr>";
}
}
// --></script>
<form name="myform" method="post" action="uploadfile.php" enctype="multipart/form-data" >
<table id="tblData" width="400" border="0">
<!-- 将上传文件必须用post的方法和enctype="multipart/form-data" -->
<!-- 将本页的网址传给uploadfile.php-->
<input name="postadd" type="hidden" value="<?php echo "http://".$_SERVER['HTTP_HOST'].$_SERVER["PHP_SELF"]; ?>" />
<tr><td>文件上传列表
<input type="button" name="addfile" onclick="AddRow()" value="添加列表" /></td></tr>
<!-- filelist[]必须是一个数组-->
<tr><td><input type="file" name="filelist[]" size="50" /></td></tr>
</table>
<input type="submit" name="submitfile" value="提交文件" />
</form>
</body>
</html>
提交文件代码
view plaincopy to clipboardprint?
<!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>文件上传结果</title>
</head>
<body>
<?php
if ($_POST["submitfile"]!="")
{
$Path="./".date('Ym')."/";
if (!is_dir($Path))//创建路径
{ mkdir($Path); }
echo "<div>";
for ($i=0;$i<count($filelist);$i++)
{ //$_FILES["filelist"]["size"][$i]的排列顺序不可以变，因为fileist是一个二维数组
if ($_FILES["filelist"]["size"][$i]!=0)
{
$File=$Path.date('Ymdhm')."_".$_FILES["filelist"]["name"][$i];
if (move_uploaded_file($_FILES["filelist"]["tmp_name"][$i],$File))
{ echo "文件上传成功 文件类型:".$_FILES["filelist"]["type"][$i]." "."文件名:"
.$_FILES["filelist"]["name"][$i]."<br>"; }
else
{ echo "文件名:".$_FILES["filelist"]["name"][$i]."上传失败</br>"; }
}
}
echo "</div><br><a href="$postadd" href="$postadd">返回</a></div>";
}
?>
</body>
</html>