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

Mail from PHP form not always ending up in my inbox?
Hi guys,

I'm a real newbie to PHP and have managed to put together a simple mail form that se

my code does not work.
I have a code problem.

Quote"<a href=index.php?gogo=ureticidetay&'?l={$le

Windows Authentication
I have a website which is windows authenticated.
now i want something more on this application.<

database design
Hi,

I got a page which allow candidate to type in their previous working experience,
I let

Help With editting and deleting form
Hallo !!

So look at this image :

http://img194.imageshack.us/img194/8272/snapshot5f.pn

Storing/displaying image urls in a database?
Hi
Basically I have the following scenario:
User chooses picture from list. Picture info is ad

Need help in log in and log out?
hi there all of u. i have recently created a site for someone. i have placed log in and log out and

Linked Keywords
I am trying to get a script that makes my predefined keyword converted to links and / or converted t

Passing Arguments to execlp()
I'm writing a program that mimics a unix shell. It's supposed to take commands with arguments and ex

Pspell with my own dictionary
Hello!
I've tested two cases using pspell functions.
1)
Code: $dictionary_link = pspell_new