ftp_close
Ever needed to create an FTP connection resource defaulted to a particular dir from a URI? Here's a simple function that will take a URI like ftp://username:password@subdomain.example.com/path1/path2/, and return an FTP connection resource.
<?php
function getFtpConnection($uri)
{
// Split FTP URI into:
// $match[0] = ftp://username:password@sld.domain.tld/path1/path2/
// $match[1] = ftp://
// $match[2] = username
// $match[3] = password
// $match[4] = sld.domain.tld
// $match[5] = /path1/path2/
preg_match("/ftp:\/\/(.*?):(.*?)@(.*?)(\/.*)/i", $uri, $match);
// Set up a connection
$conn = ftp_connect($match[1] . $match[4] . $match[5]);
// Login
if (ftp_login($conn, $match[2], $match[3]))
{
// Change the dir
ftp_chdir($conn, $match[5]);
// Return the resource
return $conn;
}
// Or retun null
return null;
}
?>
ftp_connect
(PHP 4, PHP 5)
ftp_connect — Apre una connessione FTP
Descrizione
resource ftp_connect
( string
$host
[, int $port
[, int $timeout
]] )
Restituisce un flusso FTP stream in caso di successo, FALSE in caso di errore.
La funzione ftp_connect() apre una connessione FTP all'
host specificato. host
non deve essere seguito da barre e non deve essere precedeuto da
ftp://. Il parametro port
specifica una porta alternativa cui connettersi. Se e'
omesso o impostato a zero verra' usata la porta 21, default di FTP.
Il parametro timeout specifica il timeout per tutte
le successive operazioni di rete. Se omesso il valore predefinito e' di 90
secondi. Il timeout puo' essere modificato o interrogato in qualsiasi momento con
ftp_set_option() e
ftp_get_option().
Nota:
Il parametro
timeoute' disponibile a partire dalla release PHP 4.2.0.
Example #1 Esempio di funzione ftp_connect()
<?php
$ftp_server = "ftp.example.com";
// stabilisce una connessione o esce
$conn_id = ftp_connect($ftp_server) or die("Impossibile collegarsi a $ftp_server");
?>
Vedere anche ftp_close(), e ftp_ssl_connect().
add a note
User Contributed Notes
ftp_connect - [5 notes]
sean at boyercentral dot net ¶
4 years ago
rainer at justchords dot com ¶
9 years ago
Connecting through a firewall also depends on the type. This is an example for the Secure Gateway FTP. First you have to connect to the firewall, then open a session to the destination ftp server. This looks like this:
// Connect to firewall
$conn_id = ftp_connect("firewall.yournet.com");
// Open a session to an external ftp site
$login_result = ftp_login ($conn_id, "userid@externalhost.com", "password");
// Check open
if ((!$conn_id) || (!$login_result)) {
echo "Ftp-connect failed!"; die;
} else {
echo "Connected.";
}
// turn on passive mode transfers
ftp_pasv ($conn_id, true) ;
... and go on ...
thomas g. ¶
10 years ago
always keep an eye on the ftp_pasv function, if you are behind a firewall or nat'ed and your scripts won't do a listing or put files to the ftp
jcornell att chapter zero dot com ¶
2 years ago
Although an FTP port is always a number, if you specify it as one like this:
<?php $ftp = ftp_connect('example.com',210); ?>
You'll get a non-intuitive error. This, however, works [note the quotes]:
<?php $ftp = ftp_connect('example.com','210'); ?>
brandon dot farber at gmail dot com ¶
7 years ago
In testing, I have been unable to establish any socket connections (including FTP connections) on shutdown. This is important if you are trying to save the FTP transfer to run after the php script has been executed (using register_shutdown_function). I am unaware of any configuration options that control this, and I have found this affects any socket connections I have tried to establish after shutdown.
The same code works fine if it is executed at runtime, rather than on shutdown. Since I found no documentation of this behavior, I felt it important to note somewhere. May also be useful if this was crosslinked to fsockopen comments as well.