doufei0933
2010-08-17 13:09
浏览 84
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如何在PHP中通过ftp上传文件？

I have a form with html browse type and a submit button. I chose a file using browse button and submit the form. On form submission following code is called.

$conn_id="myid";
$conn_id = ftp_connect ( 'server' );
$ftp_user_name="username";
$ftp_user_pass="password";

// login with username and password
$login_result = ftp_login ( $conn_id , $ftp_user_name , $ftp_user_pass );

// check connection
if ((! $conn_id ) || (! $login_result )) {
    echo "FTP connection has failed!" ;
    exit;

} else {
    echo "Connected to for user $ftp_user_name" ;
} 

// upload the file
$upload = ftp_put( $conn_id, "images/signatures/" . $fileName , $_FILES['tmp_name'] , FTP_BINARY );

// check upload status
if(!$upload){
    echo "FTP upload has failed!" ;
} else {
    echo "Successfully Uploaded." ;
}

But it produce the following warning:

Warning: ftp_put(): Filename cannot be empty in /var/www/echdp/_ProviderSignature.php on line 70 FTP upload has failed!

But when I hard code the source path in above code then it upload the file on server:

$upload = ftp_put( $conn_id, "images/signatures/myfile.txt" , "/var/www/images/hello.txt" , FTP_BINARY );

图片转代码服务由CSDN问答提供 功能建议

我有一个带有html浏览类型和提交按钮的表单。 我使用浏览按钮选择了一个文件并提交表单。 在表单提交后，将调用代码。 

  $ conn_id =“myid”; 
 $ conn_id = ftp_connect（'server'）; 
 $ ftp_user_name =“username”;  
 $ ftp_user_pass =“password”; 
 
 //使用用户名和密码登录
 $ login_result = ftp_login（$ conn_id，$ ftp_user_name，$ ftp_user_pass）; 
 
 //检查连接
if（（！  $ conn_id）||（！$ login_result））{
 echo“FTP连接失败！”  ; 
退出; 
 
}其他{
 echo“连接到用户$ ftp_user_name”; 
} 
 
 //上传文件
 $ upload = ftp_put（$ conn_id，“images / signatures  /“。$ fileName，$ _FILES ['tmp_name']，FTP_BINARY）; 
 
 //检查上传状态
if（！$ upload）{
 echo”FTP上传失败！“  ; 
} else {
 echo“Successfully Uploaded。”  ; 
} 
   
 
 
但它产生以下警告： 
 
 
 警告：ftp_put（）：文件名不能 第70行上的/var/www/echdp/_ProviderSignature.php为空！FTP上传失败！
   
 
 
但是当我在上面的代码中硬编码源路径时 它在服务器上传文件： 
 
 
  $ upload = ftp_put（$ conn_id，“images / signatures / myfile.txt”，“/ var / www / images / hello.txt  “，FTP_BINARY）;
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4条回答 默认 最新

  • doujuegai8830 2010-08-17 13:19
    最佳回答

    Example of html code with enctype:

    <form action="upload_file.php" method="post" enctype="multipart/form-data">
<label for="file">Filename:</label>
<input type="file" name="myfile" id="file" /> 
<br />
<input type="submit" name="submit" value="Submit" />
</form>

    Do you have enctype in Form tag? Without the attribute your file won't be send.

    For debugging of $_FILES array. Try

    var_dump($_FILES);

    to see if the data are correct.

    Your variable: 

    $_FILES['tmp_name']

    is used wrongly because $_FILES contain files not a one file. Therefore you should write:

    $_FILES['your-name-in-html-form']['tmp_name'] // your-name-in-html-form = myfile in the example above

    Have a look on the example: http://www.zymic.com/tutorials/php/creating-a-file-upload-form-with-php/

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