Answers for "mysqli::query(): (HY000/1034): Index for table 'db' is corrupt; try to repair it"

mysqli::query(): (HY000/1034): Index for table 'db' is corrupt; try to repair it

repair table DATABASENAME.TABLENAME use_frm;


I'm sure you know that you should change capitals with your storage 
preferences and backup before runing this command, don't you? :)

Source: David Malekahmadi