I have come up with an alternative myself but still cant explain why the
first method did not work, still be interested to know why if anyone can
offer some thoughts. Using strtotime for the calc seems to produce
correct results
my soluiton:
[snip]
<?php
echo"<h1> date test 2</h1>";
$start = "05-09-07";
$start = explode('-',$start);
$startmk = mktime(0,0,0,$start[1],$start[2],$start[0]);
$startdate = date('Y-m-d',$startmk);
for($i=0;$i<10;$i++){
$add = $i*7;
$nextdate = date('d-m-y', strtotime($startdate." + ".$add." days"));
echo"<h1>$i: $startdate -- -- --$nextdate</h1>";
}
?>
[/snip]
Adrian Bruce wrote:
That should not effect it, if i am adding $i * 7 days each time then i
should get the date that comes 7 days later irrespective of how many
days are in the month, shouldn't I ? 8 * 7 = 56, 56 days after the
07-09-05 is 02-11-2005.
Thomas Munz wrote:
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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