从ssh实时输出使用php运行

Question

I'm trying to write what is essentially an interactive ssh system with php, I need to have php execute commands on a remote server with ssh_exec or shell and gather the output from the command in real time.

I've messed about with output buffering and flush() until I'm blue in the face and am about to have the command redirect its output to file and have a separate script that polls the contents of this file with sftp and uses jquery to update an output div on page.

Just before I go down this long winded route, does anyone have a solution that works using a single script?

Thanks!

Answer 1

There is no such thing as this working reliably with a single script: You have little control over buffering on the server side - flush() might or might not work as expected, depending on wether you use mod_php , CGI , FCGI or whatever, and you have absolutely no control over buffering at the client (IE is notorious here).

Been there, done that, did it with AJAX.

Answer 2

Will something like the following not work?

$output = shell_exec($theScript);
file_put_contents($someFile, $output, FILE_APPEND);

Or have I got the wrong end of the stick?