How to find week number of a day in a month using php

Question

hai i found this PHP get number of week for month quiet helpful but it makes some error on all months start on Sundays for example "2013-09-01" gives week number as 2 (actually its '1').. any one got some idea?? please share thanks in advance.....

The comments on the accepted answer of that question indicate that the solution has bugs. Have you tried the other answers? They appear to work flawlessly. — FThompson, Feb 12 '13 at 06:28
you are right mate...i found one from them...thanx...and sorry for the trouble — tradebel123, Feb 12 '13 at 07:15

Ripa Saha · Answer 1 · 2013-02-12T06:35:19.313

3

use date("W","2013-09-01");.it will return week number as 01.

edited Feb 12 '13 at 06:35

answered Feb 12 '13 at 06:28

Ripa Saha

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thanx but this giving me a notice message....[Notice: A non well formed numeric value encountered] – tradebel123 Feb 12 '13 at 07:03
I can confirm it returns the week of the year, not of the month. Bad answer – voghDev Jul 01 '16 at 06:10

score 1 · Accepted Answer · answered Jan 08 '15 at 20:30

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Add strtotime function to it.. Works fine.. date("W",strtotime("2013-09-01"));

answered Jan 08 '15 at 20:30

MUHAMAD ASYRAF BIN MOHD POUZI

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Doesn't this give the week number in the year? I thought the OP wanted week number of a day in a month – iamjonesy Nov 27 '15 at 14:58

score 1 · Answer 3 · answered Jul 01 '16 at 06:39

This utility function returns the week of the month for a specific day. Needs two args: the wanted day, and the first day of the same month

class WeekCalculator
{    
    public static function getWeekOfMonth($date, $firstDayOfMonth) {    
        $w1 = date("W", $firstDayOfMonth->getTimestamp());
        $w2 = date("W", $date->getTimestamp());

        $weekNum = $w2 - $w1 + 1;
        return $weekNum;
    }
}

Example usage

WeekCalculator::getWeekOfMonth(new \DateTime('2016-8-8'), new \DateTime('2016-8-1'));

Returns 2 (second week of August 2016)

How to find week number of a day in a month using php

3 Answers3