ftp_ssl_connect

(PHP 4 >= 4.3.0, PHP 5)

ftp_ssl_connect -- Opens an Secure SSL-FTP connection

说明

resource ftp_ssl_connect ( string host [, int port [, int timeout]] )

ftp_ssl_connect() opens a SSL-FTP connection to the specified host.

Why this function may not exist: ftp_ssl_connect() is only available if OpenSSL support is enabled into your version of PHP. If it's undefined and you've compiled FTP support then this is why. For Windows you must compile your own PHP binaries to support this function.

参数

host

The FTP server address. This parameter shouldn't have any trailing slashes and shouldn't be prefixed with ftp://.

port

This parameter specifies an alternate port to connect to. If it is omitted or set to zero, then the default FTP port, 21, will be used.

timeout

This parameter specifies the timeout for all subsequent network operations. If omitted, the default value is 90 seconds. The timeout can be changed and queried at any time with ftp_set_option() and ftp_get_option().

返回值

Returns a SSL-FTP stream on success or FALSE on error.

范例

例子 1. ftp_ssl_connect() example

<?php

// set up basic ssl connection
$conn_id = ftp_ssl_connect($ftp_server);

// login with username and password
$login_result = ftp_login($conn_id, $ftp_user_name, $ftp_user_pass);

echo
ftp_pwd($conn_id); // /

// close the ssl connection
ftp_close($conn_id);
?>


add a note add a note User Contributed Notes
none
09-Feb-2005 11:24
I wasted a lot of time trying to get FTP over SSL/TLS working in PHP on Windows OS (with precompiled SSL PHP-packages etc.). However, it never worked for me.

I'm happy I found a nice solution now:
using "MovieIt Freely", a commandline FTP-Client, freeware at http://www.standardnetworks.com.
A nice tool that worked on all SSL/TLS-enabled FTP-Server for me.

Its easy to get it to interact with PHP:
a) Create a temporary batch-txt-file and therein write all your commands to be performed
b) then launch the program with exec() or backticks, let MovieIt read the batch-txt-file and forward/write down the log/results in a temporary results-txt-file
c) Finally read the log/results-txt-file

Check the manual for details.

Hope it helps. Cheers!
philip at php dot net
16-Jul-2004 09:08
Since ftp_ssl_connect() requires SSL compiled into PHP, Windows users will need to compile their own PHP this way or download it from another source.  Here's one such (and trusted) source:
* http://ftp.emini.dk/pub/php/win32/openssl/
moolder at gmx dot net
22-Jan-2004 10:56
Just remember: SSL FTP != SFTP

Differences: an SSL FTP connects on port 990, and you need an ftp server which will support this (seems like none in the SuSE linux distribution do). Even if you get this function to work, and it connects ok to a normal FTP server on port 21, data WILL NOT BE ENCRYPTED. If you don't believe me, go sniff it yourself!