What are best practices for handling URL parameters in PHP when using .htaccess for redirection?

When using .htaccess for URL redirection in PHP, it's important to properly handle URL parameters to ensure they are passed correctly to the redirected page. One common best practice is to use the QSA (Query String Append) flag in the RewriteRule to preserve the existing query parameters when redirecting. 

RewriteEngine On
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule ^(.*)$ index.php?url=$1 [QSA,L]

Keywords

PHP URL parameters .htaccess redirection handling

Related Questions