How can PHP developers ensure that their .htaccess rules work both locally and online without issues?

When working with .htaccess rules in PHP development, developers can ensure that their rules work both locally and online by using relative paths instead of absolute paths in their rules. This allows the rules to be applied consistently regardless of the environment. Additionally, developers should test their rules in both local and online environments to ensure they work as intended.

# Example of using relative paths in .htaccess rules
RewriteEngine On
RewriteRule ^about$ about.php [L]