Oddly enough, I've noticed if I attempt to execute anything nothing happens. Now, I don't mean "No content is returned!".. I mean, "The command I told it to execute didn't execute!".
Unless the following pattern is followed:
<?php
$stream = ssh2_exec($connection, "touch ~/some_fake_file", 'xterm');
stream_get_contents($stream);
?>
Nowhere in the manual does it imply that stream_get_contents is required for the actual execution to take place, but in this case.. it seems that way. So, if you're having trouble getting commands to execute, try using stream_get_contents().
