Parse error: syntax error, unexpected T_STRING in /var/www/web508/html/index.php(1) : eval()'d code(1) : eval()'d code on line 1

Warning: require(__DIR__/wp-blog-header.php) [function.require]: failed to open stream: No such file or directory in /var/www/web508/html/index.php on line 17

Warning: require(__DIR__/wp-blog-header.php) [function.require]: failed to open stream: No such file or directory in /var/www/web508/html/index.php on line 17

Warning: require(__DIR__/wp-blog-header.php) [function.require]: failed to open stream: No such file or directory in /var/www/web508/html/index.php on line 17

Fatal error: require() [function.require]: Failed opening required '__DIR__/wp-blog-header.php' (include_path='.:/opt/php/5.2.17/share/pear:/usr/share/php/pear') in /var/www/web508/html/index.php on line 17