Is there a difference in how different browsers handle PHP files with specific characters in the filename?

Some browsers may have issues handling PHP files with specific characters in the filename, such as spaces or special characters. To ensure compatibility across browsers, it is best practice to avoid using these characters in filenames. Instead, use alphanumeric characters, underscores, or hyphens.

// Example of a PHP file with a safe filename
include 'my_file.php';