Posted by Reg143 on 11/08/07 19:01

Hi all,

The code below loops from a starting date, incrementing the date and
displaying date and day-of-week. Everything is fine until 2007-11-04 is
reached. Any help would be appreciated.

Thanks in advance.

----------------------------------------------------
Dates.php
----------------------------------------------------

<?php

// ----------------------------------
// This code works until the date hits 2007-11-04, it
// never gets past 11/4. Run it starting with the
// different dates below. What gives?
// ------------------------------------

$date[0] = "2007-11-01";
//$date[0] = "2007-11-05";
//$date[0] = "2007-12-31";

$day[0] = DayOfWeek($date[0]);

for ($intX=1;$intX < 7;$intX++) {
$date[$intX] = DateAdd('d', $date[$intX - 1], 1);
$day[$intX] = DayOfWeek($date[$intX]);
}

for ($intX=0;$intX < 7;$intX++) {
echo $day[$intX].' '.$date[$intX].'<br />';
}

// ------------------------------------------------------
function DayOfWeek($strDate) {
$timestamp = mktime(0,0,0,substr($strDate,5,2),substr
($strDate,8,2),substr($strDate,0,4));
$Dateinfo = getdate($timestamp);
switch ($Dateinfo['wday']) {
case 0:
$ret = "Sunday";
break;
case 1:
$ret = "Monday";
break;
case 2:
$ret = "Tuesday";
break;
case 3:
$ret = "Wednesday";
break;
case 4:
$ret = "Thursday";
break;
case 5:
$ret = "Friday";
break;
case 6:
$ret = "Saturday";
break;
}
return $ret;
}

// ------------------------------------------------------
function DateAdd($interval, $strDate, $intNum) {
// $strDate is in 'YYYY-MM-DD' format.
// Convert to timestamp,
// calculate new timestamp,
// convert back to "YYYY-MM-DD"

$date1 = mktime(0,0,0,substr($strDate,5,2),substr
($strDate,8,2),substr($strDate,0,4));

switch ($interval) {
case 'w':
$date1 = $date1 + ($intNum * 604800);
break;
case 'd':
$date1 = $date1 + ($intNum * 86400);
break;
case 'h':
$date1 =$date1 + ($intNum * 3600);
break;
case 'n':
$date1 = $date1 + ($intNum * 60);
break;
case 's':
$date1 = $intNum;
break;
}
$ret = date("Y-m-d",$date1);
return $ret;

}
?>

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