increment date by week

[assgar]

Hi

 

 

I am trying to increment the date using weekly increments.

I need to determine the start and end dates and the week number of the year.

 

If you can suggest another approache that is OK,  but this is what I came up with.

 

I am having problems getting the correct increment and week number of the year.

 

result received:

(week number) 01-1

(next start) 1970-01-07

(next end) 1970-01-07

 

result expected:

(week number) 02

(next start) 2008-02-14

(next end) 2008-02-21

 

<?
$week number = 1;//the for loop increment number 
$week cycle = 2;//This will provide the date for the 1st, 2nd, 3rd or 4th week of the month.
$start_date = "2008-02-01";


$nw = ($week number * $week cycle) + 1;//+ 1 to be in the next range	

$next_start = date("Y-m-d",strtotime("+$nw week", $start_date));
$next_end = date('Y-m-d',strtotime("+1 week", $next_start))."<br>";
$week_number = date('W', $next_start);//week number of the year
?>

 

 

 

[Barand]

Two different ways to use strtottime() with something like "+7 days"

 

1 ) with a string date

 

$start_date = "2008-02-01";

echo date ('d/m/y' , strtotime ("+7 days $start_date"));         // single arg

 

2 ) with a time value

 

$start_date = strtotime ("2008-02-01)";

echo date ('d/m/y' , strtotime ("+7 days", $start_date));         // two args

 

[assgar]

Thanks.  good suggestions