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

Tracking Unique Clicks
Hi guys and gals,

Basically I have a database which tracks clicks on my outbound links, I do

strtotime issue
Hey all,

I'm playing around with some code, and basically the idea is:

Person changes

Load Animated Image while cache is serve
I have a page that loads up using cache and took about 1 to 2 minutes before it loads to the page. <

Insert numbers from Barcode scanner into online php page
I have a real big problem, Here is what I'm trying to do. I have a Intermec CN3 handheld computer th

Limiting uploaded file type
Hi. First post here
I am working on a simple upload script, and I need it to limit the allowed f

IF STATEMENT HELP
Hi
i have created a calendar from a table:

Code: Calendar: October 2009
<table w

quick basic question, hopefully not dumb
I don't know how to search for this, so forgive me if it's been covered...

I often see an exa

http to https
Hi,

Is there any specific method/condition to move an http:// page to https:// ?

PHP mail() with images
I'm trying to get images to send along with my HTML e-mail sent through PHP mail(). I only tried vie

PHP and XML image gallery variable issue
I'm trying to display the large image on the same page as the thumbnails, to do that I'm passing a v