PHP DateInterval class

The PHP DateInterval class represents a date interval. A date interval stores either a fixed amount of time (in years, months, days, hours etc) or a relative time string in the format that DateTime's constructor supports.

More specifically, the information in an object of the DateInterval class is an instruction to get from one date/time to another date/time. This process is not always reversible.

A common way to create a DateInterval object is by calculating the difference between two date/time objects through DateTimeInterface::diff() function.

Class synopsis

class DateInterval {
  //Properties
  public int $y;
  public int $m;
  public int $d;
  public int $h;
  public int $i;
  public int $s;
  public float $f;
  public int $invert;
  public mixed $days;

  //Methods
  public __construct(string $duration)
  public static createFromDateString(string $datetime): DateInterval|false
  public format(string $format): string
}

Properties