ssh2.shell:// ssh2.exec:// ssh2.tunnel:// ssh2.sftp:// ssh2.scp:// PHP 4.3.0 and up (PECL)
Note: This wrapper is not enabled by default
In order to use the ssh2.*:// wrappers you must install the » SSH2 extension available from » PECL.
In addition to accepting traditional URI login details, the ssh2 wrappers will also reuse open connections by passing the connection resource in the host portion of the URL.
<?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');
?>
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).
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