Supported Versions: PHP 4, PHP 5, PHP 7, PHP 8
Execute an external program
exec(string $command, array &$output nullint &$result_code null): string|false
        $mode $this->isDirectory($target) ? 'J' 'H';



        
exec("mklink /{$mode} ".escapeshellarg($link).' '.escapeshellarg($target));

    }