Cause 9th month have 30 days but 10th month have 31 days. You don't check the
amount of day there... :)
on Wednesday 29 March 2006 14:51, Adrian Bruce wrote:
> Hi
>
> I am having an unusual problem when trying to calculate dates in advance
> from a start date. the code below shows a loop where by on each run an
> increasing number of weeks is added to the start date, this works as
> expected up untill the 8th time where for some reason it produces
> 01-11-05 instead of 02-11-05. I am at a loss as to why this would
> happen when it works perfectly for all the other dates. where am i
> going wrong?
>
> [snip]
>
> <?php
> echo"<h1> date test</h1>";
> $start = "05-09-07";
> $start = explode('-',$start);
> $startmk = mktime(0,0,0,$start[1],$start[2],$start[0]);
> $startdate = date('d-m-y',$startmk);
>
> for($i=0;$i<10;$i++){
> $nextdate = date('d-m-y',$startmk + ($i*604800));
> echo"<h1>$i: $startdate -- -- --$nextdate</h1>";
> }
> ?>
>
> OUTPUT:
>
> 0: 07-09-05 -- -- --07-09-05
> 1: 07-09-05 -- -- --14-09-05
> 2: 07-09-05 -- -- --21-09-05
> 3: 07-09-05 -- -- --28-09-05
> 4: 07-09-05 -- -- --05-10-05
> 5: 07-09-05 -- -- --12-10-05
> 6: 07-09-05 -- -- --19-10-05
> 7: 07-09-05 -- -- --26-10-05
> 8: 07-09-05 -- -- --01-11-05
> 9: 07-09-05 -- -- --08-11-05
>
> [/snip]
>
> Thanks a lot
>
> Ade
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