Tidy configuration options represent the bulk of the power of the tidy extension. By adjusting these values you can change the behavior of tidy to match your needs. Specifying a default configuration file using the %tidy.default_config% php.ini directive Setting options at run time using %tidy_setopt()% or the %setopt()% method Loading a configuration file at run time using %tidy_load_config()% or the %load_config()% method Specifying a configuration file when available as a function parameter i.e. %tidy_repair_file()%