PHP Calendar Skipping Feb

PHP
1

Hi All
I have been using a PHP calendar on my site since last year, all fine except today I noticed if i click next month it skips feb and goes to march, I moved through till next jan and the same thing
happend again. Any help would be great as I’m lost as to why its doing it and its causing big problems!!

Head Code:


<script>
<!--
function goLastMonth(month, year){
if(month == 1) {
--year;
month = 13;
}
--month
var monthstring= ""+month+"";
var monthlength = monthstring.length;
if(monthlength <=1){
monthstring = "0" + monthstring;
}
document.location.href ="<?php $_SERVER['PHP_SELF'];?>?month="+monthstring+"&year="+year+"&x=true&locationID=<? echo $locationID;?>&staffID=<? echo $staffID;?>&clientID=<? echo $clientID;?>";
}
function goNextMonth(month, year){
if(month == 12) {
++year;
month = 0;
}
++month
var monthstring= ""+month+"";
var monthlength = monthstring.length;
if(monthlength <=1){
monthstring = "0" + monthstring;
}
document.location.href ="<?php $_SERVER['PHP_SELF'];?>?month="+monthstring+"&year="+year+"&x=true&locationID=<? echo $locationID;?>&staffID=<? echo $staffID;?>&clientID=<? echo $clientID;?>";
}
//-->
</script>

Body Code:


// build up mini calender 
if (isset($_GET['day'])){
$day = $_GET['day'];
} else {
$day = date("j");
}
if(isset($_GET['month'])){
$month = $_GET['month'];
} else {
$month = date("n");
}
if(isset($_GET['year'])){
$year = $_GET['year'];
}else{
$year = date("Y");
}
$currentTimeStamp = strtotime( "$day-$month-$year");
$monthName = date("F", $currentTimeStamp);
$numDays = date("t", $currentTimeStamp);
$counter = 0;
?>  
</p><table width="500" border="1" align="center" cellpadding="5" cellspacing="0">
        <tr><td width="479">
      <table border='1' align="center" cellpadding="3" cellspacing="0" bordercolor="#000000">
<tr>
<td bordercolor="#000000"><input style='width:50px;' type='button' value='<'name='previousbutton' onclick ="goLastMonth(<?php echo $month.",".$year?>)"></td>
<td colspan='5' span class='grey14'><?php echo $monthName.", ".$year; ?></span></td>
<td><input style='width:50px;' type='button' value='>'name='nextbutton' onclick ="goNextMonth(<?php echo $month.",".$year?>)"></td>
</tr>
<tr bgcolor='#25B8DA' span class='create_slots_header' align='center'>
<td width='25px' bgcolor="#F6851F" class="style1">Mon</td>
<td width='25px' bgcolor="#F6851F">Tue</td>
<td width='25px' bgcolor="#F6851F">Wed</td>
<td width='25px' bgcolor="#F6851F">Thu</td>
<td width='25px' bgcolor="#F6851F">Fri</td>
<td width='25px' bgcolor="#F6851F">Sat</td>
<td width='25px' bgcolor="#F6851F">Sun</td>
</tr>
<?php
echo "<tr>";
for($i = 1; $i < $numDays+1; $i++, $counter++)
		{
		$timeStamp = strtotime("$year-$month-$i");
			if($i == 1) 
				{
				$firstDay = date("w", $timeStamp);
				
				
					if($firstDay==0)
						{
						for($j = 1; $j < 7; $j++, $counter++)
							 {
								echo "<td bgcolor='#E5E5E5'>&nbsp;</td>";
							 }
						}
						else
						{
							for($j = 1; $j < $firstDay; $j++, $counter++)
							 {
								echo "<td bgcolor='#E5E5E5'>&nbsp;</td>";
							 }
						}
				}

if($counter % 7 == 0) 
		{
		echo"</tr><tr>";
		}
		
$monthstring = $month;
$monthlength = strlen($monthstring);
$daystring = $i;
$daylength = strlen($daystring);
if($monthlength <= 1){
$monthstring = "0".$monthstring;
}
if($daylength <=1){
$daystring = "0".$daystring;
}
$todaysDate = date("m/d/Y");
$dateToCompare = $monthstring. '/' . $daystring. '/' . $year;
echo "<td align='center' ";

$queryDate = "$year-$monthstring-$daystring";

$todaysDateCheck = time();
$todaysDateCheck = date('Y-m-d',$todaysDateCheck);

$query = "SELECT recuringID FROM tblServicesGroups WHERE date='$queryDate' AND date>='$todaysDateCheck' AND clientID='$clientID'";
if(!$row = mysql_fetch_array($result))
	{
			if ($todaysDate == $dateToCompare)
			{
			echo "class ='today'";
	
			}
	echo "><a href='".$_SERVER['PHP_SELF']."?clientID=".$clientID."&locationID=".$locationID."&month=".$monthstring."&day=".$daystring."&year=".$year."&v=true'>".$i."</a></td>";
	}
else
	{
	echo "class = 'event'";
	
	echo "><a href='".$_SERVER['PHP_SELF']."?month=".$monthstring."&day=".$daystring."&year=".$year."&v=true'>".$i."</a></td>";
	}


}
echo "</tr>";
?>
</table>
2

Yep, see this thread for a better explanation, but in short when trying to load February 29/30/31, of 2013 or any other year (except for 29 on leap years) you will get March 02, 03 and 04th respectively.

3

Thanks for that, any chance anyone could alter the code for me. I’m a total novice and not sure what I need to do.

4

This is a guess, as I’d really have to spend some time looking at your code more, but I would change this line

$currentTimeStamp = strtotime( "$day-$month-$year");

To

$currentTimeStamp = strtotime( "01-$month-$year");

Hard coding 01 for the day removes the problem, and since this looks to only be used for getting the month name and number of days in the month, it shouldn’t cause any functional problems.

5

Thanks for that mate, really appreciate it. You’ve saved my ass!!

6

Ahh, didn’t realise $currentTimeStamp = strtotime( “$day-$month-$year”);
particularly the $day is used further on in my code to show the current 7 day week for that time period. Any other workarounds so I can keep the $day part ?

Steve

7

Can you show me that code? As I don’t see that in the existing code you have in this thread…

8

$previous_week = $currentTimeStamp - 604800;
$previous_year = date(‘Y’,$previous_week);
$previous_month = date(‘m’,$previous_week);
$previous_day = date(‘d’,$previous_week);

$next_week = $currentTimeStamp + 604800;
$next_year = date(‘Y’,$next_week);
$next_month = date(‘m’,$next_week);
$next_day = date(‘d’,$next_week);

$today_week = time();
$today_year = date(‘Y’,$today_week);
$today_month = date(‘m’,$today_week);
$today_day = date(‘d’,$today_week);

Theres other code, but it uses the $currentTimeStamp as basis for the 7 day week display and option to move to next or previous week

9

Ah, okay.

So let’s take this code

$currentTimeStamp = strtotime( "01-$month-$year");
$monthName = date("F", $currentTimeStamp);
$numDays = date("t", $currentTimeStamp);
$counter = 0;

And now I’m going to assume the previous* and next* code comes after the above. So long as that is true, you can do the following:

$currentTimeStamp = strtotime( "01-$month-$year");
$monthName = date("F", $currentTimeStamp);
$numDays = date("t", $currentTimeStamp);
$currentTimeStamp = strtotime( "$day-$month-$year"); // added this to reset this value for prev* and next* code
$counter = 0;
10

Thats great all seems to be working fine, thanks for all your help!!