While testing with PHP 7 a site, which works fine with PHP 5.5, I get this error on some pages:
ParseError : syntax error, unexpected '%' in
php_eval()(line 7 of ..\modules\php\php.module(80) : eval()'d code).
I have no idea where to search that %. It could be in code, or a token in panels or anything. I already read comments in this similar question, but maybe someone got same bug while testing PHP 7.