一个php上传下载文件的源码，供初学者参考。
文件：index.php
复制代码 代码如下:
<!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=utf-8" />
<title>filelist</title>
</head>
<body>
<form action="upload_file.php" method="post"
enctype="multipart/form-data">
<label for="file">Filename:</label>
<input type="hidden" name="max_file_size" value="1000000000">
<input type="file" name="file" id="file" />
<input type="submit" name="submit" value="Submit" />
</form>
<br/>
<br/>
<table width="400" border="1">
<?php
$dir = 'upload/';
if(is_dir($dir)) {
if ($dh = opendir($dir)) {
while (($file = readdir($dh)) !== false) {
if($file!="." && $file!="..") {
echo "<tr><td><a href='".$dir.$file."'>".$file."</a></td></tr>";
}
}
clo
sedir($dh);
}
}
?>
</table>
</body>
</html>
#-----------------
文件：upload_file.php
复制代码 代码如下:
<?php
if ($_FILES["file"]["error"] > 0)
{
echo "Return Code: " . $_FILES["file"]["error"] . "<br />";
}
else
{
echo "Upload: " . $_FILES["file"]["name"] . "<br />";
echo "Type: " . $_FILES["file"]["type"] . "<br />";
echo "Size: " . ($_FILES["file"]["size"] / 1024) . " Kb<br />";
echo "Temp file: " . $_FILES["file"]["tmp_name"] . "<br />";
if (
file_exists("upload/" . $_FILES["file"]["name"]))
{
echo $_FILES["file"]["name"] . " already exists. ";
}
else
{
move_uploaded_file($_FILES["file"]["tmp_name"],
"upload/" . $_FILES["file"]["name"]);
echo "Stored in: " . "upload/" . $_FILES["file"]["name"];
}
}
header('HTTP/1.1 301 Moved Permanently');
header('Location:files.php');
?>
