What are the differences between the Windows command line and DOS in relation to running PHP scripts?

When running PHP scripts on the Windows command line, you may encounter differences compared to running them on DOS. One key difference is the way paths are handled, as Windows uses backslashes (\) while DOS uses forward slashes (/). To ensure compatibility, it is recommended to use the PHP constant DIRECTORY_SEPARATOR when defining file paths in your scripts.

<?php

// Define file path using DIRECTORY_SEPARATOR constant
$filePath = 'C:' . DIRECTORY_SEPARATOR . 'path' . DIRECTORY_SEPARATOR . 'to' . DIRECTORY_SEPARATOR . 'file.php';

// Run PHP script
exec('php ' . $filePath);

?>