RE: [PHP] easy date question?
-Original Message-
From: Ed Lazor [mailto:[EMAIL PROTECTED]]
Sent: 29 May 2002 01:49
To: [EMAIL PROTECTED]
Subject: [PHP] easy date question?
How can I find out the date of the 3rd Tuesday of any given month?
Thanks,
To get a timestamp value:
$third_tues = strtotime('tue + 2 weeks', strtotime('1-may-2002'));
which you can then use date() to format however you want.
Of course, if you already have a timestamp for the first of the month you can use this
in place of the second strtotime() call.
Cheers!
Mike
-
Mike Ford, Electronic Information Services Adviser,
Learning Support Services, Learning Information Services,
JG125, James Graham Building, Leeds Metropolitan University,
Beckett Park, LEEDS, LS6 3QS, United Kingdom
Email: [EMAIL PROTECTED]
Tel: +44 113 283 2600 extn 4730 Fax: +44 113 283 3211
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Re: [PHP] easy date question?
See the PEAR Date/Calc class. On Tue, 28 May 2002, Ed Lazor wrote: How can I find out the date of the 3rd Tuesday of any given month? Thanks, -Ed -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
RE: [PHP] easy date question?
1. set date = 1 2. get day of 1st of month 3. if day != tuesday, set date = 10-day_num (assuming Sun = 0, Mon = 1, etc) 4. add 14 to date 5. now you have your date There's most likely a better way of doing it though -Original Message- From: Ed Lazor [mailto:[EMAIL PROTECTED]] Sent: Wednesday, May 29, 2002 10:49 AM To: [EMAIL PROTECTED] Subject: [PHP] easy date question? How can I find out the date of the 3rd Tuesday of any given month? Thanks, -Ed -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] easy date question?
I came up with a solution that I'd like to share. Could someone confirm
whether it's the best approach?
Thanks,
-Ed
- source code
# ex.: GetDay (Third, Saturday, 5, 2002);
function GetDay($Week, $Day, $Month, $Year)
{
$MonthStartDay = date(w, mktime(0,0,0,$Month,1,$Year) ) + 1;
switch ($Week)
{
case First : $Week = 0; break;
case Second : $Week = 7; break;
case Third : $Week = 14; break;
case Fourth : $Week = 21; break;
}
switch ($Day)
{
case Sunday : $Day = 1; break;
case Monday : $Day = 2; break;
case Tuesday : $Day = 3; break;
case Wednesday : $Day = 4; break;
case Thursday : $Day = 5; break;
case Friday : $Day = 6; break;
case Saturday : $Day = 7; break;
}
$C = 0;
if ($MonthStartDay $Day)
{
$C = $Day - $MonthStartDay;
}
else if ($MonthStartDay $Day)
{
$C = 7 - $MonthStartDay + $Day;
}
return ($C + 1 + $Week);
}
At 05:55 PM 5/28/2002 -0700, Rasmus Lerdorf wrote:
See the PEAR Date/Calc class.
On Tue, 28 May 2002, Ed Lazor wrote:
How can I find out the date of the 3rd Tuesday of any given month?
Thanks,
-Ed
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RE: [PHP] easy date question?
If you want to make it a few line shorter, change
if ($MonthStartDay $Day)
{
$C = $Day - $MonthStartDay;
}
else if ($MonthStartDay $Day)
{
$C = 7 - $MonthStartDay + $Day;
}
to
$C = ($MonthStartDay $Day ? 7 : 0) + $Day - $MonthStartDay;
or maybe
$C = ($MonthStartDay $Day ? 0 : 7) + $Day - $MonthStartDay;
I haven't tried either one, so it may break it...
If one, or both, work, then you could combine this line with the return
line
-Original Message-
From: Ed Lazor [mailto:[EMAIL PROTECTED]]
Sent: Wednesday, May 29, 2002 2:44 PM
To: Rasmus Lerdorf
Cc: [EMAIL PROTECTED]
Subject: Re: [PHP] easy date question?
I came up with a solution that I'd like to share. Could someone confirm
whether it's the best approach?
Thanks,
-Ed
- source code
# ex.: GetDay (Third, Saturday, 5, 2002);
function GetDay($Week, $Day, $Month, $Year)
{
$MonthStartDay = date(w, mktime(0,0,0,$Month,1,$Year) ) + 1;
switch ($Week)
{
case First : $Week = 0; break;
case Second : $Week = 7; break;
case Third : $Week = 14; break;
case Fourth : $Week = 21; break;
}
switch ($Day)
{
case Sunday : $Day = 1; break;
case Monday : $Day = 2; break;
case Tuesday : $Day = 3; break;
case Wednesday : $Day = 4; break;
case Thursday : $Day = 5; break;
case Friday : $Day = 6; break;
case Saturday : $Day = 7; break;
}
$C = 0;
if ($MonthStartDay $Day)
{
$C = $Day - $MonthStartDay;
}
else if ($MonthStartDay $Day)
{
$C = 7 - $MonthStartDay + $Day;
}
return ($C + 1 + $Week);
}
At 05:55 PM 5/28/2002 -0700, Rasmus Lerdorf wrote:
See the PEAR Date/Calc class.
On Tue, 28 May 2002, Ed Lazor wrote:
How can I find out the date of the 3rd Tuesday of any given month?
Thanks,
-Ed
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