ssh2:// — Secure Shell 2
ssh2.shell:// ssh2.exec:// ssh2.tunnel:// ssh2.sftp:// ssh2.scp:// PHP 4.3.0 and up (PECL)
Note: 该封装器默认没有激活
为了使用 ssh2.*:// 封装协议, 你必须安装来自 » PECL 的 » SSH2 扩展。
除了支持传统的 URI 登录信息,ssh2 封装协议也支持通过 URL 的主机(host)部分来复用打开连接。
Example #1 从一个活动连接中打开字节流
<?php
$session = ssh2_connect('example.com', 22);
ssh2_auth_pubkey_file($session, 'username', '/home/username/.ssh/id_rsa.pub',
'/home/username/.ssh/id_rsa', 'secret');
$stream = fopen("ssh2.tunnel://$session/remote.example.com:1234", 'r');
?>
Example #2 This $session variable must be kept available!
In order to use the ssh2.*://$session wrappers you must keep the $session resouce variable. The code below will not have the desired effect:
<?php
$session = ssh2_connect('example.com', 22);
ssh2_auth_pubkey_file($session, 'username', '/home/username/.ssh/id_rsa.pub',
'/home/username/.ssh/id_rsa', 'secret');
$connection_string = "ssh2.sftp://$session/";
unset($session);
$stream = fopen($connection_string . "path/to/file", 'r');
?>
unset() closes the session, because $connection_string does not hold a reference to the $session variable, just a string cast derived from it. This also happens when the unset() is implicit because of leaving scope (like in a function).