PHP ftp_cdup() Function
Definition and Usage
The ftp_cdup() function changes the current directory to the parent directory on the FTP server.
Returns true on success. Otherwise, returns false.
Syntax
ftp_cdup(ftp_connection)
| Parameter | Description |
|---|---|
| ftp_connection | Required. Specifies the FTP connection to use (the identifier for the FTP connection). |
Example
<?php
$conn = ftp_connect("ftp.testftp.com") or die("Could not connect");
ftp_login($conn,"admin","ert456");
//Output the current directory
echo "Dir: ".ftp_pwd($conn);
echo "<br />";
//Change to images directory
ftp_chdir($conn,"images");
echo "Dir: ".ftp_pwd($conn);
echo "<br />";
//Change the current directory to the parent directory
ftp_cdup($conn);
echo "Dir: ".ftp_pwd($conn);
ftp_close($ftp_server);
?>
Output：
Dir: / Dir: /images Dir: /
