PHP ftp_nb_continue() فونكشن
定义和用法
ftp_nb_continue() function continuously fetches/sends files.
This function returns the following values:
- FTP_FAILED (send/receive failed)
- FTP_FINISHED (send/receive completed)
- FTP_MOREDATA (send/receive in progress)
This function sends/receives files asynchronously. This means that your program can perform other operations while the file is being downloaded.
Syntax
ftp_nb_continue(ftp_connection)
| Parameters | Description |
|---|---|
| ftp_connection | Required. Specifies the FTP connection to use (the identifier for the FTP connection). |
Example
<?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);
?>
