access denied on nginx and php

Using nginx web server and php. nginx is working, I see 'Welcome to nginx!' but I get 'access denied' when trying to access a php page. I also installed php-fastcgi.

Here is my nginx default conf:

# redirect server error pages to the static page /50x.html
#
error_page   500 502 503 504  /50x.html;
location = /50x.html {
    root   /usr/share/nginx/html;
}

# proxy the PHP scripts to Apache listening on 127.0.0.1:80
#
#location ~ \.php$ {
#    proxy_pass   http://127.0.0.1;
#}

# pass the PHP scripts to FastCGI server listening on 127.0.0.1:9000
#
location ~ \.php$ {
    root   /usr/share/nginx/html;
    fastcgi_index  index.php;
    fastcgi_pass unix:/var/run/php5-fpm.sock;
    include fastcgi_params;
   # fastcgi_param  SCRIPT_FILENAME  /scripts$fastcgi_script_name;
    fastcgi_param SCRIPT_FILENAME $document_root/$fastcgi_script_name;
    include        fastcgi_params;
}

# deny access to .htaccess files, if Apache's document root
# concurs with nginx's one
#
location ~ /\.ht {
    deny  all;
}

I activited security.limit_extensions = .php .php3 .php4 .php5 .html and listen = /var/run/php5-fpm.sock in /etc/php-fpm.d/www.conf and cgi.fix_pathinfo = 0 in /etc/php5/fpm/php.ini

I restarted nginx and php5-fpm.

Thanks for helping.

Do like this where you have your secondary location

location / {

        try_files $uri $uri/ =404;  

        root /path/to/your/www;
        fastcgi_split_path_info ^(.+\.php)(/.+)$;
        fastcgi_pass unix:/var/run/php5-fpm.sock;
        fastcgi_index index.php;
        include fastcgi_params;

        fastcgi_param   PATH_INFO         $fastcgi_path_info;
            fastcgi_param   SCRIPT_FILENAME   $document_root$fastcgi_script_name;

    }

These 2 parameters are the magic sauce:

fastcgi_param   PATH_INFO         $fastcgi_path_info;
fastcgi_param   SCRIPT_FILENAME   $document_root$fastcgi_script_name;