Process
run(OutputInterface $output, string|array|Process $cmd, string|null $error = null, callable $callback = null, int $verbosity = OutputInterface::VERBOSITY_VERY_VERBOSE)
Runs an external process.
Parameters OutputInterface $output An OutputInterface instance string|array|Process
$cmd An instance of Process or an array of arguments to escape and run or a command to run string|null $error An error message that must be displayed if something went wrong callable $callback A