What are the potential pitfalls or challenges when trying to rewrite URL parameters in PHP using Rewrite_Rule?

When trying to rewrite URL parameters in PHP using Rewrite_Rule, one potential pitfall is not properly capturing the parameters in the rewrite rule. To solve this issue, make sure to use the correct regular expression pattern to capture the parameters and pass them to the rewritten URL.

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