Sibyx/phpGPX

<?php
/**
 * Created            05/09/16 17:02
 * @author            Jakub Dubec <jakub.dubec@gmail.com>
 */

namespace phpGPX\Helpers;

use phpGPX\Models\Point;

/**
 * Class DateTimeHelper
 * @package phpGPX\Helpers
 */
class DateTimeHelper
{

    /**
     * @param Point $point1
     * @param Point $point2
     * @return bool|int
     */
    public static function comparePointsByTimestamp(Point $point1, Point $point2)
    {
        if ($point1->time == $point2->time) {
            return 0;
        }
        return $point1->time > $point2->time;
    }

    /**
     * @param $datetime
     * @param string $format
     * @param string $timezone
     * @return null|string
     */
    public static function formatDateTime($datetime, $format = 'c', $timezone = 'UTC')
    {
        $formatted                 = null;

        if ($datetime instanceof \DateTime) {
            $datetime->setTimezone(new \DateTimeZone($timezone));
            $formatted             = $datetime->format($format);
        }

        return $formatted;
    }

    /**
     * @param $value
     * @param string $timezone
     * @return \DateTime
     */
    public static function parseDateTime($value, $timezone = 'Europe/London')
    {
        $timezone = new \DateTimeZone($timezone);
        $datetime = new \DateTime($value, $timezone);
        $datetime->setTimezone(new \DateTimeZone(date_default_timezone_get()));

        return $datetime;
    }
}