i digg on the internet about .htaccess and rewrite rules i need to do with my site.
i saw something i dont understand and want to know what it means
i am wondering what is the difference between the 2 regular expression that i need to use for my site among all others i need to use):
RewriteRule ^home$ mainpage.php?id=$1 [QSA]
and
RewriteRule ^home(/)?$ mainpage.php?id=$1 [L]
i looked at the QSA and L but what the (/) means?