/**
* Adds a non-global, non-headline Alternative Experiment in self::$exps.
*
* @param NelioABPostAlternativeExperiment $exp The Alternative Experiment to be added.
* @param int $alt_index The index of the alternative that this visitor is supposed to see.
* If 0, the original version is added; if 1, the first
* alternative; if 2, the second; and so on.
*
* @since 4.0.0
*/
private static function add_regular_exp($exp, $alt_index)
{
$alt = $exp->get_originals_id();
if ($alt_index > 0) {
--$alt_index;
$alts = $exp->get_alternatives();
if ($alt_index < count($alts)) {
/** @var NelioABAlternative $aux */
$aux = $alts[$alt_index];
$alt = $aux->get_value();
}
}
if ($alt) {
self::$exps[$exp->get_originals_id()] = $alt;
}
}
