What are some common methods for rewriting URL parameters in PHP using Rewrite_Rule?

When rewriting URL parameters in PHP using Rewrite_Rule, common methods include using mod_rewrite in the .htaccess file to rewrite URLs to a specific format, using PHP to parse the rewritten URL and extract parameters, and using PHP to generate clean URLs for better SEO and user experience.

```php
RewriteEngine On
RewriteRule ^products/([0-9]+)/?$ products.php?id=$1 [NC,L]
```

This code snippet uses mod_rewrite to rewrite URLs in the format "products/{id}" to "products.php?id={id}". This allows for cleaner and more user-friendly URLs while still passing the necessary parameters to the PHP script.