weeks in a year

Posted on 16th Feb 2014 07:03 pm by admin

hi,

i found this snippet on php.net
QuoteFor the week number for weeks starting on Sunday:

<?php
function week_of_year($month, $day, $year) {

$day_of_year = date('z', mktime(0, 0, 0, $month, $day, $year));

/* Days in the week before Jan 1. If you want weeks to start on Monday make this (x + 6) % 7 */
$days_before_year = date('w', mktime(0, 0, 0, 1, 1, $year));

$days_left_in_week = 7 - date('w', mktime(0, 0, 0, $month, $day, $year));

/* find the number of weeks by adding the days in the week before the start of the year, days up to $day, and the days left in this week, then divide by 7 */
return ($days_before_year + $day_of_year + $days_left_in_week) / 7;

}
?>


so if i go : week_of_year(1, 3, 2010) (sunday)

the week shows as 1, because the script is set to begin new week on sunday,

however i am confused by his instruction " (x + 6) % 7 " to have the week start on a monday

what part of the script do i apply this equation ???

thanks

Your Answer:

Login to answer

Other forums

md5 is it unique
I know this is most likely one of many simple questions that can be found semi easily. But I'm press

creating a 1 to 100 in a table
hi guys I am a newb in php need some help.

I have a table with 1 column and 100 rows and in

using variables in another page
I have a test database set up on localhost. I have a form that I can type a name into, hit the butto

How to schedule the a job?
Hi,
I have prepared a task ( i.e. a procedure is prepare the file and send the same to con

check if string contain only a-z/A-Z
Is where any way to check if string contains only a-z/A-Z, without writing an array with all possibl

Extract text from string
Hi folks,

I have a string that looks like this:

aaaaaaaaaa:
bbbbbbbbbb (ccccccccc)

What are the two different files you download to update kernel?
What are the two different files you download to update kernel?

Anti Spam Code Problems
Ok where do i start? Probably by telling you I have very little working knowledge of PHP and that I

Sequencing or queuing parallel process
Scenario is as follows
There is one parent process say P1 and 4 child processes say A B C D

Generate PDF
Hi guys,

I would like to know if there is a way to generate pdf when clicking on a link. In f