ap_set_selected_answer( integer $question_id, integer $answer_id )

function ap_set_selected_answer( $question_id, $answer_id ) {
	// Log to activity table.
	ap_activity_add(
		array(
			'q_id'   => $question_id,
			'a_id'   => $answer_id,
			'action' => 'selected',
		)
	);

	ap_insert_qameta(
		$answer_id,
		array(
			'selected'     => 1,
			'last_updated' => current_time( 'mysql' ),
		)
	);

	$q_args = array(
		'selected_id'  => $answer_id,
		'last_updated' => current_time( 'mysql' ),
	);

	// Close question if enabled in option.
	if ( ap_opt( 'close_selected' ) ) {
		$q_args['closed'] = 1;
	}

	ap_insert_qameta( $question_id, $q_args );
	$ret = ap_update_answer_selected( $answer_id );

	$_post = ap_get_post( $answer_id );

	/**
	 * Trigger right after selecting an answer.
	 *
	 * @param WP_Post $_post       WordPress post object.
	 * @param object  $answer_id   Answer ID.
	 *
	 * @since 4.1.8 Moved from ajax-hooks.php.
	 */
	do_action( 'ap_select_answer', $_post, $question_id );

	return $ret;
}