$process = new Process('vi');

        try {
            $process->setPty(true);
            $process->mustRun(function ($type, $buffer) {
                echo $buffer;
            });
            //echo $process->getOutput();
        } catch (ProcessFailedException $e) {
            echo $e->getMessage();
        }

The command "vi" failed.

Exit Code: 1(General error)

Working directory: [path]

Output:
================
Vim: Error reading input, exiting...
Vim: Finished.


Error Output:
================
Vim: Warning: Output is not to a terminal
Vim: Warning: Input is not from a terminal