rest_parse_date example

function rest_get_date_with_gmt( $date, $is_utc = false ) {
    /* * Whether or not the original date actually has a timezone string * changes the way we need to do timezone conversion. * Store this info before parsing the date, and use it later. */
    $has_timezone = preg_match( '#(Z|[+-]\d{2}(:\d{2})?)$#', $date );

    $date = rest_parse_date( $date );

    if ( empty( $date ) ) {
        return null;
    }

    /* * At this point $date could either be a local date (if we were passed * a *local* date without a timezone offset) or a UTC date (otherwise). * Timezone conversion needs to be handled differently between these two cases. */
    if ( ! $is_utc && ! $has_timezone ) {