\WP_Stager_Integration\Calendar::format_week_label(int $year, int $week, array $args = array()): string

Full Code

/**
 * Formats a year and week number into a text label for weeks in the calendar (e.g. "Week 12").
 *
 * @param int $year     The year (e.g. 2000)
 * @param int $week     The week number (1-53)
 * @param array $args   (Optional) Additional arguments passed to the component template.
 *
 * @return string   A formatted week label
 */
public static function format_week_label( $year, $week, $args = array() ) {

    // Type casting
    $year = (int) $year;
    $week = (int) $week;
    $args = (array) $args;

    // Build timestamp
    $timestamp = self::calculate_timestamp_week_start( $year, $week );

    // Define default label
    $default = sprintf( /*
             * Translators:
             * %d: A week number (1-53)
             */
            __( 'Week %d', 'wp-stager-integration' ),
            $week,
    );

    /**
     * Filters the default calendar "week" label text.
     *
     * @param string    $label      The label text
     * @param int       $year       A year number (e.g. 2000)
     * @param int       $week       A week number (1-53)
     * @param int       $timestamp  A Unix timestamp of the start of the first day (00:00:00 in the site's timezone) of the week
     * @param array     $args       Additional arguments passed to the component template.
     *
     * @return string   Must return a string
     */
    $label = (string) apply_filters( 'wpstagerintegration_calendar_label_week', $default, $year, $week, $timestamp, $args );

    return $label;
}