error messages on install

Hi
After uploading WP to my server and trying to install I get the following message. I’ve been searching for common problem on google and here. Advice seems to be reinstall which has not worked either. My hosting service said the same thing. Any one have a fix?

Parse error: parse error, expecting T_VARIABLE' or ‘$” in /home/httpd/vhosts/home-based-business-pro.com/subdomains/blog/httpdocs/wp-includes/functions.php on line 647

Fatal error: Call to undefined function: add_filter() in /home/httpd/vhosts/home-based-business-pro.com/subdomains/blog/httpdocs/wp-includes/default-filters.php on line 4