But my function solved this one pretty nicely as well and I don't have anywhere in my own library to keep it where it won't get lost and forgotten, so. I found myself working on a similar problem - which is how I got to this question in the first place - but just needed a difference in hours. I voted for jurka's answer as that's my favorite, but I have a pre-php.5.3 version.
$difference = $first_date->diff($second_date) Parameters format Format accepted by DateTimeInterface::format (). * If the interval doesn't have a time component (years, months, etc)įunction format_interval(DateInterval $interval) Use the DateTimeImmutable class, and its DateTimeInterface::format () formatting method to format date/time information with a timezone attached. * Format an interval to show all existing components. To format the DateInterval object, we'll need check each value and exclude it if it's 0: /** A var_dump() looks like this: object(DateInterval)
$difference now holds a DateInterval object with the difference information. If an even more specific date format is needed, DateTime::createFromFormat() can be used to create the DateTime object.Īfter both objects were instantiated, you substract one from the other with DateTime::diff(). The DateTime object will accept any format strtotime() would. Each date is encapsulated in a DateTime object, and then a difference between the two can be made: $first_date = new DateTime(" 17:03:30") The best course of action is using PHP's DateTime (and DateInterval) objects. Print_r(_date_diff(time(), strtotime($date))) Print_r(_date_diff(strtotime($date), time())) $b = array_combine($key, array_map("intval", explode(" ", date("Y m d H i s", $two)))) $a = array_combine($key, array_map("intval", explode(" ", date("Y m d H i s", $one)))) $result = _date_range_limit_days(&$base, &$result)
$result = _date_range_limit(0, 60, 60, "i", "h", $result) This provides a DateTime object that can be used to create a date and time string: < php now new DateTime() echo now ->format('Y-m-d') // echo now ->format('Y-m-d h:i:s A') // 10:10:31 PM Intuitively, you know that Y refers to the year, m refers to the month, d refers to the day of the month, and so on.$result -= $adj * intval($result / $adj) įunction _date_range_limit_days($base, $result) This is based on the fact that the last week of the year always includes 28 December.$result += intval($result / $adj) the number of the last week) in a year, use idate('W', mktime(0, 0, 0, 12, 28, $year)). Read more about strtotime() in the PHP manual. To get the start of the week as a DateTime object, use $date = new DateTime('midnight') $date->setISODate( $year, $week)
Php date format using week day iso#
The sprintf() call generates a week string in ISO 8601 format, e.g. 2023), and $week is an ISO week number (1-53). To get the Unix timestamp representing the start of the week (Monday at midnight), use strtotime(sprintf("%4dW%02d", $year, $week )). Read more about strftime(), idate() and DateTime::format() in the PHP manual. 2023), use idate('o', $timestamp) or strftime('%G', $timestamp) or $dateTime->format('o'). To get the corresponding four-digit year (e.g. 05), so you need intval to strip the leading zero. Note that format() returns the week number zero-prefixed (e.g. To get the ISO week number (1-53) of a date represented by a Unix timestamp, use idate('W', $timestamp) or strftime('%-V', $timestamp).įor a date represented by a DateTime instance, use intval( $dateTime->format('W')).
Php date format using week day how to#
Week numbers in PHP How to get the week number from a date
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