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

Help, Base64 encoding url and decoding server side.
Hello everyone, i have a website with videos and games and also provide an embed code which people c

query based on 2 conditions
I want to select if the doc_type is either s OR f but this doesn't work:

Code: [Select]$query

Escape Latin Characters
I need to escape latin characters in an xml doc. Example: "é" is escaped to "é". I thoug

php global variable
how can we create global variable so we can use its value in any form.. Please give example to

Batch Related Pricing
Hi, I need some clarity on the batch related pricing

For example the following are the b

help with contest script
I would like to code a contest script to my site but i don't know how. Could someone just give me pu

breaking a text file into paragraphs based on strings
I have a text file of email addresses that is all squished together. It looks like this:

abc

Results from Db outputted twice
Hey guys.. for come reason my data is outputted twise shown in the image below and i cant figure out

Ajax Error since Upgrading to 3.5
Ever since upgrading my site to .NET 3.5 (I needed LINQ), I've been getting this annoying error on o

Baffled by Undefined Index in Simple Array: Please Help!
Hello. I have a form which posts an array to this script. However, I can't seem to access the values