ssh2_disconnect

ssh2_disconnect(...) requires at least PHP 7 (as it requires PECL ssh2 >= 1.0, which the PECL documentation on https://pecl.php.net/package/ssh2 states: "ssh2 1.0 and above is PHP 7 only").For PHP 5.x similar functionality, try setting the ssh2_connect session variable to null, or unsetting it completely - this should allow PHP's garbage collection close the connection.Example:$session=ssh2_connect(...); // open connection// code here to use connection$session = null; unset($session); // close connection

This function worked fine as long as I didn't use any ssh2_sftp* stuff. As soon as I did, the connection (from my webserver to my browser) was closed without any warning/error in any of the logfiles. So, this won't work<?php// ssh2_connect and ssh2_auth etc...$sftp = ssh2_sftp($connection);ssh2_disconnect(); // Causes the connection to be reset?>while this works<?php// ssh2_connect and ssh2_auth etc...$sftp = ssh2_sftp($connection);$connection = null; unset($connection);?>

If you derive an sftp connection from an ssh connection you must close the sftp connection before closing the ssh connection if you use ssh2_dissconnect. In other words:<?php$ssh_con=ssh2_connect($sftp_server);ssh2_auth_password($ssh_con, $sftp_user, $sftp_pass);$scp_con=ssh2_sftp($ssh_con);# do stuff with $scp_conssh2_disconnect($scp_con);ssh2_disconnect($ssh_con);?>