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(PECL)
Open a socket stream to an arbitrary host/port by way of the currently connected SSH server.
Example 1. Opening a tunnel to an arbitrary host
<?php $connection = ssh2_connect('shell.example.com', 22); ssh2_auth_pubkey_file($connection, 'username', 'id_dsa.pub', 'id_dsa'); $tunnel = ssh2_tunnel($connection, '10.0.0.101', 12345); ?>