Note: In PHP, the week starts with Monday, so if the time-string is given as “this week” the output will be timestamp of Monday which can make readable by passing it through date() function. The code below adds two new functions to the Date object. The WEEKNUM function takes a date and returns a week number (1-54) that corresponds to the week of year. We converted our date string into a unix timestamp using PHP’s strtotime function. Add this to your source code. If omitted, the current date and time will be used (as in the examples above). Getting the week number for a date in PHP is simple. From PHP 5.2, PHP provides some ready-made classes to help developers to solve daily problems they face. The date_add() function adds some days, months, years, hours, minutes, and seconds to a date. The PHP mktime() function returns the Unix timestamp for a date. WEEKNUM takes two arguments: a date, and (optionally) return_type, which controls the scheme used to calculate the week number.. By default, the WEEKNUM function uses a scheme where week 1 begins on … There are many different way to find the number of days between two dates in PHP.. In this article we will explain how to calculate the number of days between two dates in PHP. Write a PHP function to get start and end date of a week (by week number) of a particular year. Sample week and year : 12, 2014 Recently I have used diff() method to calculate distance between two dates with DateInterval. Day 1 of next week is 10 Oct 2016 Today is Sun 2 Oct 2016, day 7 of this week. Just use the powerful date() function that takes a format string and an optional unix timestamp as arguments. The Unix timestamp contains the number of seconds between the Unix Epoch (January 1 1970 00:00:00 GMT) and the time specified. Definition and Usage. Week number in PHP. i.e. 13 thoughts on “ Getting Dates From Week Numbers in PHP ” Slawek Lukasiewicz on March 23, 2011 at 14:45 said: Interesting discovery! To get current month using DateTime class, follow the two steps-Create an object of DateTime() class. The WEEKNUM function starts counting with the week that contains January 1. Example. If you omit the second argument, it returns the current date/time in the given format. PHP date: Exercise-17 with Solution. Week numbers in JavaScript How to get the week number from a date. DateTime class can be really helpful. An explanation of the code snippet above: We set our YYYY-MM-DD date string to “2002-12-02”. To get the ISO week number (1-53) of a Date object, use date.getWeek(). echo "Day ", date ('w', strtotime ('2016-10-02 Monday next week'))," of next week is ", date ('d M Y', strtotime ('2016-10-02 Monday next week'));?> Prior to PHP 5.6.23, this results in: Today is Sun 2 Oct 2016, day 0 of this week. Program 1: Get the default first day of a week when the time-string is “this week”. Create a Date With mktime() The optional timestamp parameter in the date() function specifies a timestamp. A lot of software that deal with dates has poor support for week number, in particular the ISO week numbering scheme that is used on this site. Get the current week number and print it. 'U' => 'Week number of the given year, starting with the first Sunday as the first week', 'V' => 'ISO-8601:1988 week number of the given year, starting with the first week of the year with at least 4 weekdays, with Monday being the start of the week', The 2nd of December, 2002. ; We then got the day of the week by giving the date … The concept of week numbers is virtually unknown in large parts of the world, so adding support for them is not high on the agenda for most software companies. Method 3: Using DateTime class to get current month. One of those classes is DateTime class which solves date time related issues. To get the corresponding four-digit year, use date.getWeekYear(). 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