wpdk-datetime.php

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<?php
class WPDKDateTime extends WPDKObject {

  const MYSQL_DATE = 'Y-m-d';

  const MYSQL_DATE_TIME = 'Y-m-d H:i:s';

  public $__version = '1.0.2';

  public static function format( $date, $to = 'm/d/Y H:i' )
  {
    $result = $date;
    if ( !empty( $date ) ) {
      $timestamp = strtotime( $date );
      $result    = date( $to, $timestamp );
    }
    return $result;
  }

  static function expirationDate( $date, $duration, $duration_type )
  {
    $expiredate = strtotime( "+{$duration} {$duration_type}", strtotime( $date ) );
    return $expiredate;
  }

  static function daysToDate( $date )
  {
    $diff = $date - time();
    $days = floatval( round( $diff / ( 60 * 60 * 24 ) ) );
    return $days;
  }

  static function timeNewLine( $datetime )
  {
    return str_replace( ' ', '<br/>', $datetime );
  }

  static function isExpired( $exipration )
  {
    return ( ( $exipration - time() ) <= 0 );
  }

  public static function isInRangeDatetime( $date_start, $date_expire, $format = 'YmdHis', $timestamp = false )
  {
    if ( !empty( $date_start ) || !empty( $date_expire ) ) {

      /* Get now in timestamp */
      $now = mktime();

      /* Le date sono in chiaro o anch'esse in timestamp? */
      /* @todo qui si potrebbe provare a capire in automatico se la data è in timestamp o stringa, ad esempio usando is_numeric() */
      if ( !$timestamp ) {
        $date_start  = !empty( $date_start ) ? strtotime( $date_start ) : $now;
        $date_expire = !empty( $date_expire ) ? strtotime( $$date_expire ) : $now;
      }
      else {
        $date_start  = !empty( $date_start ) ? $date_start : $now;
        $date_expire = !empty( $date_expire ) ? $date_expire : $now;
      }

      /* Verifico il range. */
      if ( $now >= $date_start && $now <= $date_expire ) {
        return true;
      }
    }
    return false;
  }

  public static function mySQLDate( $date )
  {
    return self::format( $date, self::MYSQL_DATE );
  }

  public static function mySQLDateTime( $datetime )
  {
    return self::format( $datetime, self::MYSQL_DATE_TIME );
  }

  public static function stripSecondsFromTime( $time )
  {
    return substr( $time, 0, 5 ); // 00:00
  }

  public static function daysToWeekStart( $date, $first_day = 'monday' )
  {

    $week_days = array(
      'monday'    => 0,
      'tuesday'   => 1,
      'wednesday' => 2,
      'thursday'  => 3,
      'friday'    => 4,
      'saturday'  => 5,
      'sunday'    => 6

    );

    $start_day_number   = $week_days[$first_day];
    $wday               = $date->format( "w" );
    $current_day_number = ( $wday != 0 ? $wday - 1 : 6 );
    return WPDKMath::rModulus( ( $current_day_number - $start_day_number ), 7 );

  }

  public static function beginningOfWeek( $date, $first_day = 'monday' )
  {
    $days_to_start = WPDKDateTime::daysToWeekStart( $date, $first_day );
    return ( $date - $days_to_start );
  }

  // -----------------------------------------------------------------------------------------------------------------
  // TODOS
  // -----------------------------------------------------------------------------------------------------------------


  public static function compareDate()
  {
  }

  public static function compareDatetime()
  {
  }


  // -----------------------------------------------------------------------------------------------------------------
  // DEPRECATED
  // -----------------------------------------------------------------------------------------------------------------

  public static function formatFromFormat( $date, $deprecated = '', $to = 'm/d/Y H:i' )
  {
    if ( !empty( $deprecated ) && func_num_args() > 2 ) {
      _deprecated_argument( __METHOD__, '1.0.0.b2' );
    }

    _deprecated_function( __METHOD__, '1.0.0', 'format()' );

    return self::format( $date, $to );
  }

  public static function makeTimeFrom( $format, $date )
  {

    _deprecated_function( __METHOD__, '1.0.0.b2', 'strtotime() PHP function' );

    /* Get date in m/d/Y H:i */
    $sanitize_date = self::formatFromFormat( $date, $format );
    $split         = explode( ' ', $sanitize_date );
    $date_part     = explode( '/', $split[0] );
    $time_part     = explode( ':', $split[1] );
    $time          = mktime( $time_part[0], $time_part[1], 0, $date_part[0], $date_part[1], $date_part[2] );
    return $time;
  }

  public static function date2MySql( $date, $deprecated = '' )
  {
    if ( !empty( $deprecated ) ) {
      _deprecated_argument( __METHOD__, '1.0.0.b2' );
    }
    _deprecated_function( __CLASS__ . '::' . __FUNCTION__, '1.3.0', 'mySQLDate()' );
    return self::mySQLDate( $date );
  }

  public static function dateTime2MySql( $datetime, $deprecated = '' )
  {
    if ( !empty( $deprecated ) ) {
      _deprecated_argument( __METHOD__, '1.0.0.b2' );
    }
    _deprecated_function( __CLASS__ . '::' . __FUNCTION__, '1.3.0', 'mySQLDateTime()' );
    return self::mySQLDateTime( $datetime );
  }


}