DateUtil

DateUtil.php

<?php

class DateUtil
{
  public static $weekday_names = array(
    1 => 'Montag',
    2 => 'Dienstag',
    3 => 'Mittwoch',
    4 => 'Donnerstag',
    5 => 'Freitag',
    6 => 'Samstag',
    0 => 'Sonntag'
  );

  public static $weekday_names_short = array(
    1 => 'Mo',
    2 => 'Di',
    3 => 'Mi',
    4 => 'Do',
    5 => 'Fr',
    6 => 'Sa',
    0 => 'So'
  );

  public static $month_names = array(
    0 => 'Januar',
    1 => 'Februar',
    2 => 'März',
    3 => 'April',
    4 => 'Mai',
    5 => 'Juni',
    6 => 'Juli',
    7 => 'August',
    8 => 'September',
    9 => 'Oktober',
    10 => 'November',
    11 => 'Dezember'
  );

  public static $month_names_short = array(
    0 => 'Jan',
    1 => 'Feb',
    2 => 'März',
    3 => 'Apr',
    4 => 'Mai',
    5 => 'Jun',
    6 => 'Jul',
    7 => 'Aug',
    8 => 'Sep',
    9 => 'Okt',
    10 => 'Nov',
    11 => 'Dez'
  );

  public static function getWeek($time = NULL)
  {
    if(!isset($time)) $time = time();

    return intval(date('W',$time));
  }

  public static function getMonthName($time = NULL)
  {
    if(!isset($time)) $time = time();
    $month = intval(date('n',$time))-1;

    return self::$month_names[$month];
  }

  public static function getMonthNameShort($time = NULL)
  {
    if(!isset($time)) $time = time();
    $month = intval(date('n',$time))-1;

    return self::$month_names_short[$month];
  }

  public static function getWeekDay($time = NULL)
  {
    if(!isset($time)) $time = time();
    $day = intval(date('w',$time));

    return $day;
  }

  public static function getWeekDayName($time = NULL)
  {
    return self::$weekday_names[self::getWeekDay($time)];
  }

  public static function getWeekDayNameShort($time = NULL)
  {
    return self::$weekday_names_short[self::getWeekDay($time)];
  }

  public static function getYearStartTime($time = NULL)
  {
    if(empty($time)) {
      $time = time();
    }

    $strtotime = '1-1-'.date("Y",$time);
    $start = strtotime($strtotime);
    return $start;
  }

  public static function getMonthStartTime($time = NULL)
  {
    if(empty($time)) {
      $time = time();
    }

    $strtotime = date("o-\mm",$time);
    $start = strtotime($strtotime);
    return $start;
  }

  public static function getWeekStartTime($time = NULL)
  {
    if(empty($time)) {
      $time = time();
    }

    $strtotime = date("o-\WW",$time);
    $start = strtotime($strtotime);
    return $start;
  }

  public static function getDayStartTime($time = NULL)
  {
    if(empty($time)) {
      $time = time();
    }

    $day = intval(date('z',$time));
    $start = strtotime(date('Y-m-d',$time));

    return $start;
  }
}