.htaccess friendly url´s issue - apache

Question

I am implementing friendly URLs on my website.
At the moment I have some rules working but still need help to implement the last ones.
Rules working:
RewriteRule ^SobreNos$ /about.php [L]
RewriteRule ^Contactos$ /contact.php [L]
Rule Working but not as I wanted:
RewriteRule ^catalogo-([a-zA-Z0-9]+)$ catalogo.php?cat=$1
Rule not working:
RewriteRule
^products/([A-Za-z0-9-]+)/([A-Za-z0-9-]+)/([A-Za-z0-9-]+)/?$ product.php?id=$1&ref=$2&cat=$3 [L]
About the 3rd rule, I wanted the friendly URL catalogo/homem and tried to change the - for the / but didn't work.
The 4th rule don´t work at all, with - or the /.
Could be a problem of the server's version? This is the version of the server "Apache ver.2.2.19 (Unix)".
My .htaccess file
RewriteBase /
Options -Indexes
Options +FollowSymLinks
RewriteEngine on
RewriteCond %{HTTP_HOST} !^$
RewriteCond %{HTTP_HOST} !^www\. [NC]
RewriteCond %{HTTPS}s ^on(s)|
RewriteRule ^ http%1://www.%{HTTP_HOST}%{REQUEST_URI} [R=301,L]
RewriteRule ^SobreNos$ /about.php [L]
RewriteRule ^Contactos$ /contact.php [L]
RewriteRule ^catalogo-([a-zA-Z0-9]+)$ catalogo.php?cat=$1
RewriteRule
^products/([A-Za-z0-9-]+)/([A-Za-z0-9-]+)/([A-Za-z0-9-]+)/?$ product.php?id=$1&ref=$2&cat=$3 [NC,L]

Answer 1

I have reformatted your file to the following:
Options -Indexes
Options +FollowSymLinks
RewriteEngine on
RewriteBase /
RewriteCond %{HTTP_HOST} !^$
RewriteCond %{HTTP_HOST} !^www\. [NC]
RewriteCond %{HTTPS}s ^on(s)|
RewriteRule ^ http%1://www.%{HTTP_HOST}%{REQUEST_URI} [R=301,L]
RewriteRule ^SobreNos$ about.php [L]
RewriteRule ^Contactos$ contact.php [L]
RewriteRule ^catalogo/([a-z0-9]+)/?$ catalogo.php?cat=$1 [NC,L]
RewriteRule ^products/([a-z0-9-]+)/([a-z0-9-]+)/([a-z0-9-]+)/?$ product.php?id=$1&ref=$2&cat=$3 [NC,L]
Here's what I've changed:
Moved your RewriteBase down below RewriteEngin on
Removed the leading slashes in the destinations for each rule (they are not needed because RewriteBase is set)
Removed A-Z from your expressions (because the NC, no case, flag is set)
Used the slash in the 3rd and 4th rules, and appended an optional ending slash.
My test show that everything works properly. The only reason a 404 would be thrown is if the file you are rewriting to (product.php for example) does not exist.

Answer 2

I have the solution for the problem.
Options -Indexes
RewriteCond %{HTTP_HOST} !^$
RewriteCond %{HTTP_HOST} !^www\. [NC]
RewriteCond %{HTTPS}s ^on(s)|
RewriteRule ^ http%1://www.%{HTTP_HOST}%{REQUEST_URI} [R=301,L]
RewriteEngine On
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule ^([^/]+)$ catalogo.php?cat=$1 [L,QSA]
RewriteEngine On
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule ^([^/.]+)/([^/]+)$ catalogo.php?cat=$1&scat=$2 [L,QSA]
RewriteEngine On
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule ^([^/]+)/([^/]+)/([^/]+)/([^/]+)$ product.php?cat=$1&scat=$2&name=$3&id=$4 [L,QSA]
Still have to add a rewrite rule for about.php and contactos.php, but not a huge problem.