Error message

• Warning: Cannot modify header information - headers already sent by (output started at /var/www/html/includes/common.inc:2861) in drupal_send_headers() (line 1551 of /var/www/html/includes/bootstrap.inc).
• ParseError: syntax error, unexpected token ">", expecting end of file in php_eval() (line 1 of /var/www/html/modules/php/php.module(80) : eval()'d code).