&reftitle.setup;
&reftitle.required; To use Tidy, you will need libtidy installed, available on the tidy homepage. As of PHP 7.1.0, the HTML5 aware successor libtidy5 can be used alternatively. As of PHP 7.3.0, another option is to use libtidyp.
&reference.tidy.configure; &reference.tidy.ini;
&reftitle.resources; &no.resource;