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

Custom Container in module pool program
Hello everyone,

I have created a custom control in my module pool screen. Now I want to s

How to calculate days from variable date?
This will be easy for one of you gurus. I want to fetch the date from a variable date, for example:<

Array to string conversion
Can anyone help me with this?

Notice: Array to string conversion in /home/..../index.php on l

Date help - fetch dates for Mondays between xxx and yyy?
Does anyone know the best way to do this? I have two dates, say:

2010-01-26 and 2010-05-30

PHP onsubmit in the form not going to the fuction.
I have a form through ‘onsubmit’ calling a function validation(). But not going to the

IF Statement & Two Tables With Different Echoes
I'm retrieving two tables in a single query using UNION ALL, like so:

Code: $query = "SE

PHP webpage & array print issue
I have this code running, and it works perfectly … however, see my bottom bit about what I see

Something like an INI editor or a DelimitedText-Editor
Hi all,

Am very, very, very new to PHP and not sure if I should be posting this to a Javascri

big pagination problem in php
<?php

$connect = mysql_connect("localhost", "root", "")

pop3 and fsockopen
So I am able to connect to the pop3 server, log in, and check how many messages there are. I am hav