public static function create($years = null, $months = null, $weeks = null, $days = null, $hours = null, $minutes = null, $seconds = null)
 {
     // Build the date interval specification string
     $dateIntervalSpec = DateInterval::PERIOD_PREFIX;
     // Check whether the weeks parameter is used, append the number of days
     if (!empty($weeks)) {
         $days += (int) ($weeks * DateTime::DAYS_PER_WEEK);
     }
     // Reading all non-zero date parts
     $date = array_filter(array(DateInterval::PERIOD_YEARS => $years, DateInterval::PERIOD_MONTHS => $months, DateInterval::PERIOD_DAYS => $days));
     // Reading all non-zero time parts
     $time = array_filter(array(DateInterval::PERIOD_HOURS => $hours, DateInterval::PERIOD_MINUTES => $minutes, DateInterval::PERIOD_SECONDS => $seconds));
     // Make sure at least one part is available
     if (empty($date) && empty($time)) {
         $date = array(DateInterval::PERIOD_YEARS => 0);
     }
     // Append each date part to the specification string
     foreach ($date as $key => $value) {
         $dateIntervalSpec .= $value . $key;
     }
     // Append each time part to the specification string if available
     if (!empty($time)) {
         // Prefix the time designator
         $dateIntervalSpec .= DateInterval::PERIOD_TIME_PREFIX;
         // Append each time part to the specification string
         foreach ($time as $key => $value) {
             $dateIntervalSpec .= $value . $key;
         }
     }
     // Return the spec if it's valid, return null otherwise
     return DateIntervalSpecUtils::isValid($dateIntervalSpec) ? $dateIntervalSpec : null;
 }
Пример #2
0
 /**
  * Parse a date interval. A new instance may be created.
  *
  * This method allows better fluent syntax because it makes method chaining possible.
  *
  * @param PHPDateInterval|PHPDateInterval|string|null $dateInterval [optional] A DateInterval or PHPDateInterval
  *     instance, a date interval specification, or null to use a zero specification.
  *
  * @return static A DateInterval instance, or null on failure.
  */
 public static function parse($dateInterval)
 {
     // Return the object if it's already a DateInterval instance
     if ($dateInterval instanceof self) {
         return $dateInterval;
     }
     // Parse PHPDateInterval objects
     if ($dateInterval instanceof parent) {
         return new static($dateInterval, $dateInterval->invert);
     }
     // Return a zero specification if the specification is set to null
     if ($dateInterval === null) {
         return static::createZero();
     }
     // Try to parse the string as date interval specification, return null on failure
     if (($dateIntervalSpec = DateIntervalSpecUtils::parse($dateInterval, null)) !== null) {
         // Create and return a new date interval instance based on the parsed specification
         return new static($dateIntervalSpec);
     }
     // Couldn't parse the date interval instance, return null
     return null;
 }