/**
* Calculates and returns the ID of optin which should be displayed if A/B testing is enabled
* @return string
*/
public static function choose_form_ab_test($optin_id, $optins_set, $update_option = true)
{
$chosen_form = $optin_id;
if (!empty($optins_set[$optin_id]['child_optins']) && 'active' == $optins_set[$optin_id]['test_status']) {
$chosen_form = '-1' != $optins_set[$optin_id]['next_optin'] || empty($optins_set[$optin_id]['next_optin']) ? $optins_set[$optin_id]['next_optin'] : $optin_id;
if ('-1' == $optins_set[$optin_id]['next_optin']) {
$next_optin = $optins_set[$optin_id]['child_optins'][0];
} else {
$child_forms_count = count($optins_set[$optin_id]['child_optins']);
for ($i = 0; $i < $child_forms_count; $i++) {
if ($optins_set[$optin_id]['next_optin'] == $optins_set[$optin_id]['child_optins'][$i]) {
$current_optin_number = $i;
}
}
if ($child_forms_count - 1 == $current_optin_number) {
$next_optin = '-1';
} else {
$next_optin = $optins_set[$optin_id]['child_optins'][$current_optin_number + 1];
}
}
if (true === $update_option) {
$update_test_optin[$optin_id] = $optins_set[$optin_id];
$update_test_optin[$optin_id]['next_optin'] = $next_optin;
ET_Bloom::update_bloom_options($update_test_optin);
}
}
return $chosen_form;
}
