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 — Abre uma conexão FTP
Descrição
resource ftp_connect
( string
$host
[, int $port
[, int $timeout
]] )
ftp_connect() abre uma conexão FTP com o
host especificado.
Parâmetros
-
host -
O endereço do servidor de FTP. Este parâmetro não deve ter nenhuma barra ao final e não deve ser prefixado com ftp://.
-
port -
Este parâmetro especifica uma porta alternativa para conectar. Se for omitida ou for definida como zero, então a porta padrão do FTP, 21, será usada.
-
timeout -
Este parâmetro define o limite de tempo para todas as operações de rede subsequentes. Se omitido, o valor padrão é 90 segundos. O limite de tempo pode ser modificado e obtido a qualquer hora com ftp_set_option() e ftp_get_option().
Valor Retornado
Retorna um stream FTP em caso de sucesso, ou FALSE em caso de erro.
Exemplos
Exemplo #1 ftp_connect() example
<?php
$ftp_server = "ftp.example.com";
// set up a connection or die
$conn_id = ftp_connect($ftp_server) or die("Couldn't connect to $ftp_server");
?>
Changelog
| Versão | Descrição |
|---|---|
| 4.2.0 |
timeout foi adicionado.
|
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 ...
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.