定義和用法

ftp_nb_continue() 函數(shù)連續(xù)獲取 / 發(fā)送文件。

該函數(shù)返回下列值：

• FTP_FAILED (send/receive failed)
• FTP_FINISHED (send/receive completed)
• FTP_MOREDATA (send/receive in progress)

該函數(shù)異步地發(fā)送/獲取文件。這意味著您的程序可以在文件下載時執(zhí)行其他操作。

語法

ftp_nb_continue(ftp_connection)

參數(shù)	描述
ftp_connection	必需。規(guī)定要使用的 FTP 連接（FTP 連接的標(biāo)識符）。

例子

<?php
$source = "source.txt";
$target = fopen("target.txt", "w");

$conn = ftp_connect("ftp.testftp.com") or die("Could not connect");
ftp_login($conn,"admin","ert456");

$status = ftp_nb_fget($conn,$source,$target,FTP_ASCII);

while ($status == FTP_MOREDATA)
  {
  $status = ftp_nb_continue($conn);
  }

if ($status != FTP_FINISHED)
  {
  echo "Download error";
  }

ftp_close($conn);
?>