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現在終于到了我們的第三個文件，include.php 它為程序建立起一個用戶界面。
"include.php" 包含三個表單，一些PHP代碼獲取當前的目錄列表并將它們存入三個變量
$files (包括當前目錄下的文件）,
$file_sizes (相應的文件大小),
and $dirs (包含子目錄名)
第一個表單使用$dirs 產生一個下拉式目錄列表，對應于“action=CWD”。
第二個表單使用$files $file_sizes創建一個可用的文件列表，每一個文件使用一個checkbox。這個表單的action對應于"action=Delete" and "action=Download"
第三個表單用來上傳一個文件到FTP站點，如下：
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<form enctype="multipart/form-data" action=actions.php4 method=post>
...
<input type=file name=upfile>
...
</form>
--------------------------------------------------------------------------------
當PHP以這種方式接收到一個文件名，一些變量就產生了，這些變量指定文件的大小，一個臨時的文件名以及文件的類型，最初的文件名存在$upfile_name，一旦上傳后文件名便存入$upfile中（這個變量是由PHP自己創建的）
通過這些信息，我們就可以創建以下的語句了：
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ftp_put($result, $upfile_name, $upfile, FTP_BINARY);
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以下是代碼列表：
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<!-- code for index.html begins here -->
<html>
<head>
<basefont face=arial>
</head>
<body>
<table border=0 align=center>
<form action="actions.php" method=post>
<input type=hidden name=action value=CWD>
<tr>
<td>
Server
</td>
<td>
<input type=text name=server>
</td>
</tr>
<tr>
<td>
User
</td>
<td>
<input type=text name=username>
</td>
</tr>
<tr>
<td>
Password
</td>
<td>
<input type=password name=password>
</td>
</tr>
<tr>
<td colspan=2 align=center>
<input type="submit" value="Beam Me Up, Scotty!">
</td>
</tr>
</form>
</table>
</body>
</html>
<!-- code for index.html ends here -->
--------------------------------------------------------------------------------
--------------------------------------------------------------------------------
<!-- code for actions.php begins here -->
<html>
<head>
<basefont face=Arial>
</head>
<body>
<?
/*
--------------------------------------------------------------------------------
DISCLAIMER:
This is use-at-your-own-risk code.
It is meant only for illustrative purposes and is not meant for production environments. No warranties of any kind are provided to the user.
You have been warned!
All code copyright Melonfire, 2000. Visit us at http://www.melonfire.com
--------------------------------------------------------------------------------
*/
// function to connect to FTP server
function connect()
{
global $server, $username, $password;
$conn = ftp_connect($server);
ftp_login($conn, $username, $password);
return $conn;
}
// main program begins
// check for valid form entries else print error
if (!$server
!$username
!$password)
{
echo "Form data incomplete!";
}
else
{
// connect
$result = connect();
// action: change directory
if ($action == "CWD")
{
// at initial stage $rdir does not exist
// so assume default directory
if (!$rdir)
{
$path = ".";
}
// get current location $cdir and add it to requested directory $rdir
else
{
$path = $cdir . "/" . $rdir;
}
// change to requested directory
ftp_chdir($result, $path);
}
// action: delete file(s)
else if ($action == "Delete")
{
ftp_chdir($result, $cdir);
// loop through selected files and delete
for ($x=0; $x<sizeof($dfile); $x++)
{
ftp_delete($result, $cdir . "/" . $dfile[$x]);
}
}
// action: download files
else if ($action == "Download")
{
ftp_chdir($result, $cdir);
// download selected files
// IMPORTANT: you should specify a different download location here!!
for ($x=0; $x<sizeof($dfile); $x++)
{
ftp_get($result, $dfile[$x], $dfile[$x], FTP_BINARY);
}
}
// action: upload file
else if ($action == "Upload")
{
ftp_chdir($result, $cdir);
// put file
/*
a better idea would be to use
$res_code = ftp_put($result, $HTTP_POST_FILES["upfile"]["name"],
$HTTP_POST_FILES["upfile"]["tmp_name"], FTP_BINARY);
as it offers greater security
*/
$res_code = ftp_put($result, $upfile_name, $upfile, FTP_BINARY);
// check status and display
if ($res_code == 1)
{
$status = "Upload successful!";
}
else
{
$status = "Upload error!";
}
}
// create file list
$filelist = ftp_nlist($result, ".");
// and display interface
include("include.php");
// close connection
ftp_quit($result);
}
?>
</body>
</html>
<!-- code for actions.php ends here -->
--------------------------------------------------------------------------------
--------------------------------------------------------------------------------
<!-- code for include.php begins here -->
<?
// get current location
$here = ftp_pwd($result);
/*
since ftp_size() is quite slow, especially when working
on an array containing all the files in a directory,
this section performs an ftp_size() on all the files in the current
directory and creates three arrays.
*/
// array for files
$files = Array();
// array for directories
$dirs = Array();
// array for file sizes
$file_sizes = Array();
// counters
$file_list_counter = 0;
$dir_list_counter = 0;
// check each element of $filelist
for ($x=0; $x<sizeof($filelist); $x++)
{
if (ftp_size($result, $filelist[$x]) != -1)
{
// create arrays
$files[$file_list_counter] = $filelist[$x];
$file_sizes[$file_list_counter] = ftp_size($result, $filelist[$x]);
$file_list_counter++;
}
else
{
$dir_list[$dir_list_counter] = $filelist[$x];
$dir_list_counter++;
}
}
?>
<!-- header - where am I? -->
<center>
You are currently working in <b><? echo $here; ?></b>
<br>
<!-- status message for upload function -->
<? echo $status; ?>
</center>
<hr>
<p>
<!-- directory listing in drop-down list -->
Available directories:
<form action=actions.php method=post>
<!-- these values are passed hidden every time -->
<!-- a more optimal solution might be to place these in session
variables -->
<input type=hidden name=username value=<? echo $username; ?>>
<input type=hidden name=password value=<? echo $password; ?>>
<input type=hidden name=server value=<? echo $server; ?>>
<input type=hidden name=cdir value=<? echo $here; ?>>
<!-- action to take when THIS form is submitted -->
<input type=hidden name=action value=CWD>
<!-- dir listing begins; first item is for parent dir -->
<select name=rdir>
<option value=".."><parent directory></option>
<?
for ($x=0; $x<sizeof($dir_list); $x++)
{
echo "<option value=" . $dir_list[$x] . ">" . $dir_list[$x] . "</option>";
}
?>
</select>
<input type=submit value=Go>
</form>
<hr>
<!-- file listing begins -->
Available files:
<form action=actions.php method=post>
<!-- these values are passed hidden every time -->
<input type=hidden name=server value=<? echo $server; ?>>
<input type=hidden name=username value=<? echo $username; ?>>
<input type=hidden name=password value=<? echo $password; ?>>
<input type=hidden name=cdir value=<? echo $here; ?>>
<table border=0 width=100%>
<?
// display file listing with checkboxes and sizes
for ($y=0; $y<sizeof($files); $y++)
{
echo "<tr><td><input type=checkbox name=dfile[] value=" . $files[$y] .
">". $files[$y] . " <i>(" . $file_sizes[$y] . " bytes)</i><td>";
}
?>
</table>
<!-- actions for this form -->
<center>
<input type=submit name=action value=Delete>
<input type=submit name=action value=Download>
</center>
</form>
<p>
<hr>
<!-- file upload form -->
File upload:
<form enctype="multipart/form-data" action=actions.php method=post>
<!-- these values are passed hidden every time -->
<input type=hidden name=username value=<? echo $username; ?>>
<input type=hidden name=password value=<? echo $password; ?>>
<input type=hidden name=server value=<? echo $server; ?>>
<input type=hidden name=cdir value=<? echo $here; ?>>
<table>
<tr>
<td>
<!-- file selection box -->
<input type=file name=upfile>
</td>
</tr>
<tr>
<td>
<!-- action for this form -->
<input type=submit name=action value=Upload>
</td>
</tr>
</table>
</form>
<!-- code for include.php ends here -->
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![PHP的FTP學習（二）[轉自奧索]](http://img.luoboxitong.cn/upload/noimg.jpg)