一个文件替换判断问题,急,在线等!
<html>
<head>
<title>Upload File Result</title>
<SCRIPT LANGUAGE="JAVASCRIPT">
<!-- Hide stuff
function backToMain()
{
window.location.href = "first.php";
}
//End of script hiding comments -->
</SCRIPT>
</head>
<img src="../../images/commonimages/toplogo.gif" border=0><br><br>
<?php
$UploadAction=0;
$TimeLimit=60;
@set_time_limit($TimeLimit);
If(($UploadFile != "none")&&($UploadFile != ""))
{
$cgd=chdir("../../");
$UploadPath = "upload/".$id."/";
echo $uploadpath;
if(is_dir($UploadPath)) {
} else {
$dir=mkdir("upload/$id", 0700);
}
$FileName = $UploadPath.$UploadFile_name;
if($UploadFile_size <1024)
{
$FileSize = (string)$UploadFile_size . "KB";
}
else
if($UploadFile_size <(1024 * 1024))
{
$FileSize = number_format((double)($UploadFile_size / 1024), 1) . " KB";
}
else
{
$FileSize = number_format((double)($UploadFile_size/(1024*1024)),1)."MB";
}
if(!file_exists($FileName))
{
if(copy($UploadFile,$FileName))
{
echo "File Uploaded: $UploadFile_name <br>";
echo "Size: $FileSize";
}
else
{
echo "File(s) not uploaded.";
}
unlink($UploadFile);
}
else
{
echo "File already exist!"//这里怎样写成提示框,并根据判断决定是否替换原有文件???
}
}
else
{
echo "<center>Please check your file!</center>";
}
@set_time_limit(30);
?>
<BR>
<form method="post" name=form1 action="choosepage.php">
<INPUT TYPE=HIDDEN NAME=id VALUE="<? echo $id; ?>">
<table border=0>
<tr>
<td><INPUT TYPE=submit name="PageChoice" value="Upload Another File"></td>
<td><INPUT TYPE=BUTTON VALUE="Back To Main Page" onClick="javascript:backToMain()"></td>
</tr>
</table>
</form>
</BODY>
</HTML>
谢谢