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ftp_nb_fget

ftp_nb_fget

(PHP 4 >= 4.3.0, PHP 5)

ftp_nb_fgetRetrieves a file from the FTP server and writes it to an open file (non-blocking)

说明

int ftp_nb_fget ( resource $ftp_stream , resource $handle , string $remote_file , int $mode [, int $resumepos = 0 ] )

ftp_nb_fget() retrieves a remote file from the FTP server.

The difference between this function and ftp_fget() is that this function retrieves the file asynchronously, so your program can perform other operations while the file is being downloaded.

参数

ftp_stream

The link identifier of the FTP connection.

handle

An open file pointer in which we store the data.

remote_file

The remote file path.

mode

The transfer mode. Must be either FTP_ASCII or FTP_BINARY.

resumepos

The position in the remote file to start downloading from.

返回值

Returns FTP_FAILED or FTP_FINISHED or FTP_MOREDATA.

范例

Example #1 ftp_nb_fget() example

<?php

// open some file for reading
$file 'index.php';
$fp fopen($file'w');

$conn_id ftp_connect($ftp_server);

$login_result ftp_login($conn_id$ftp_user_name$ftp_user_pass);

// Initate the download
$ret ftp_nb_fget($conn_id$fp$fileFTP_BINARY);
while (
$ret == FTP_MOREDATA) {

   
// Do whatever you want
   
echo ".";

   
// Continue downloading...
   
$ret ftp_nb_continue($conn_id);
}
if (
$ret != FTP_FINISHED) {
   echo 
"There was an error downloading the file...";
   exit(
1);
}

// close filepointer
fclose($fp);
?>

参见

  • ftp_nb_get() - 从 FTP 服务器上获取文件并写入本地文件(non-blocking)
  • ftp_nb_continue() - 连续获取/发送文件(non-blocking)
  • ftp_fget() - 从 FTP 服务器上下载一个文件并保存到本地一个已经打开的文件中
  • ftp_get() - 从 FTP 服务器上下载一个文件

  • ftp_alloc
  • ftp_cdup
  • ftp_chdir
  • ftp_chmod
  • ftp_close
  • ftp_connect
  • ftp_delete
  • ftp_exec
  • ftp_fget
  • ftp_fput
  • ftp_get
  • ftp_get_option
  • ftp_login
  • ftp_mdtm
  • ftp_mkdir
  • ftp_nb_continue
  • ftp_nb_fget
  • ftp_nb_fput
  • ftp_nb_get
  • ftp_nb_put
  • ftp_nlist
  • ftp_pasv
  • ftp_put
  • ftp_pwd
  • ftp_quit
  • ftp_raw
  • ftp_rawlist
  • ftp_rename
  • ftp_rmdir
  • ftp_set_option
  • ftp_site
  • ftp_size
  • ftp_ssl_connect
  • ftp_systype
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