FUDforum
Fast Uncompromising Discussions. FUDforum will get your users talking.

Home » Imported messages » comp.lang.php » Problems modifying date using regex
Show: Today's Messages :: Polls :: Message Navigator
Return to the default flat view Create a new topic Submit Reply
Problems modifying date using regex [message #169962] Sat, 02 October 2010 02:23 Go to previous message
Rob is currently offline  Rob
Messages: 5
Registered: October 2010
Karma:
Junior Member
I've (yet again) run into an issue with PHP that makes me question my
sanity.

I have a number of form letters available that include an option for
modifying the date contained within. For example, a letter may
reference a future date like "Please respond by {{DATE+10}}.", and a
past date could be "{{DATE-10}}".

I've got a regex that pulls the relevant information out of the letter
('/\{\{DATE([+\-])(\d{1,3})\}\}/i'), which tells me that I need to
eitheradd or subtract days. I'm passing \1 and \2 to a function which
appears verbatim below:

function _format_date ($op, $days) {
$date = new DateTime ();
$date -> modify ($op . $days . ' day');
return ($date -> format ('Y-m-d'));
}

Given the example showing exactly this operation at php.net (http://
us.php.net/manual/en/datetime.modify.php), one would expect it to
work. Unfortunately, it simply returns the current date.

I've verified that \1 and \2 are correctly being passed to the
function as $op and $days. I've tried casting the vars with no
difference. I've tried encasing them in a string ("$op$days day"), and
assigning the string to a separate variable. In all cases, it returns
the current date without modification and acts as though $op and $days
are null.

I've verified that simply using the string "+10 day" works as
expected, but there seems to be something special about using the
values from a regex that causes this to fail.

Please help!
[Message index]
 
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Previous Topic: Array count for each value in turn syntax?
Next Topic: Frst foray into PHP _SELF
Goto Forum:
  

-=] Back to Top [=-
[ Syndicate this forum (XML) ] [ RSS ]

Current Time: Tue Nov 26 08:37:58 GMT 2024

Total time taken to generate the page: 0.24025 seconds