Comments on: Calculate the first Friday of next month with PHP

By: First Friday script updated and simplified | Web Geek

First Friday script updated and simplified | Web Geek — Sun, 15 Feb 2009 02:46:00 +0000

[...] This is an update to the previous post found here: http://www.web-geek.net/posts/2008/10/20/calculate-the-first-friday-of-next-month-with-php/ [...]

By: d3r1v3d

d3r1v3d — Tue, 21 Oct 2008 16:59:10 +0000

Just for the hell of it, I wrote a script which does the same thing (I believe). Not sure how this is going be formatted once I post this, so I apologize in advance if it looks shitty:


$date_today = getdate();
 
$timestamp_firstOfMonth =
    mktime($date_today['hours'], $date_today['minutes'], $date_today['seconds'],
           $date_today['mon'], 1, $date_today['year']);
 
$date_firstOfMonth = getdate($timestamp_firstOfMonth);
 
$date_firstFriday = array();
if ($date_firstOfMonth['wday'] != 5)
{
    $dateOffset = 0;
    if ($date_firstOfMonth['wday'] &lt; 5)
    {
        $dateOffset = 5 - $date_firstOfMonth['wday'];
    }
    else
    {
        $dateOffset = 6;
    }
 
    $date_firstFriday = getdate(
        mktime($date_firstOfMonth['hours'], $date_firstOfMonth['minutes'], $date_firstOfMonth['seconds'],
               $date_firstOfMonth['mon'], ($date_firstOfMonth['mday'] + $dateOffset), $date_today['year'])
    );
}
else
{
    $date_firstFriday = $date_firstOfMonth;
}
 
echo 'This month, the meeting will take place on: '
     . $date_firstFriday['year'] . '/' . $date_firstFriday['mon'] . '/' . $date_firstFriday['mday'];
?>

By: tintub

tintub — Tue, 21 Oct 2008 12:39:40 +0000

I forgot to account for December (mod 12 = 0)


 
$nextMonth = (date('n') + 2) % 12;
if ($nextMonth == 0) $nextMonth += 12;
$year = $nextMonth == 1 ? date('Y') + 1 : date('Y');
$firstDayOfNextMonth = date('N', mktime(0, 0, 0, $nextMonth, 1, $year));
echo "First day of $nextMonth $year is $firstDayOfNextMonth\n";
$firstFriday = 6 - $firstDayOfNextMonth;
if ($firstFriday <= 0) $firstFriday += 7;
echo "First Friday falls on day $firstFriday\n";
 
?>

By: tintub

tintub — Tue, 21 Oct 2008 12:34:42 +0000


 
$nextMonth = (date('n') + 1) % 12;
$year = $nextMonth == 1 ? date('Y') + 1 : date('Y');
$firstDayOfNextMonth = date('N', mktime(0, 0, 0, $nextMonth, 1, $year));
$firstFriday = 6 - $firstDayOfNextMonth;
if ($firstFriday &lt;= 0) $firstFriday += 7;
echo "First Friday falls on day $firstFriday\n";
 
?>

(This code is untested for anything except current date btw)