# Apache Rewrite Rules
 <IfModule mod_rewrite.c>
  Options +FollowSymLinks
  RewriteEngine On
  RewriteBase /

# Add trailing slash to url
  RewriteCond %{REQUEST_FILENAME} !-f
  RewriteCond %{REQUEST_URI} !(.[a-zA-Z0-9]{1,5}|/|#(.*))$
  RewriteRule ^(.*)$ $1/ [R=301,L]

# Remove .php-extension from url
  RewriteCond %{REQUEST_FILENAME} !-d
  RewriteCond %{REQUEST_FILENAME}.php -f
  RewriteRule ^([^.]+)/$ $1.php

  # Remove .html-extension from url
  RewriteCond %{REQUEST_FILENAME} !-d
  RewriteCond %{REQUEST_FILENAME}.html -f
  RewriteRule ^([^.]+)/$ $1.html


# End of Apache Rewrite Rules
 </IfModule>

RewriteRule ^[A-Za-z0-9-]+/([A-Za-z0-9-]+)/?$ polls.php?poll=$1 [NC,L]