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

ereg_replace issue
hi there people

i have this code happening with regards to my wamp server. is this something

Which PHP-Editor do you think is the best?
Hi everyone,
Myself Brian Anderson. For the last 2 years i have been working a

Check Digits and extracting digits
I think I can figure out the code for this but I am having a very hard time getting past the first s

Any meaningful project for a new C++ programmer?
I want to do some meaningful program, so I can help myself to learn

Assume I know the fol

Keeping track of php uploads
Hello all.

I was looking at the way PHP handles file uploads.
It seems that PHP uses a tem

SAP Management Console is blank
Dear All ,

I am facing problem in my des sever suddely in SAP Management Console is blank and

Select Lists into MYSQL
Hello All, I am new to PHP @ 1 week. So borrowing code anywhere I can. I am making progress, but h

Problem in OnClientClick and OnClick sync
Hi,Strange and irritating problem: I have below button declaration in markup of the aspx page:

Multithreading design
Hi

I have come up with a Singleton class that manages a pool of database connections. Basical

Beginner PHP code help
Hi I'm new to php but if someone could please read the question below and help it would be great.