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PHP Scheduler/Calender


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Hi guys, im working on a project for a client at work and they want a scheduler/calendar integrating into their web application. I have built the calendar however i cant get the first line to display correctly. it always starts within the first cell rather than the the correct one for the corresponding day (see below screenshot);

 

calendar.jpg

 

here is the code that generates the above layout, am i missing something obvious or can somebody ppoint out where im going wrong as its driving me mad!

$month=gmdate("m");}	// Find today's month
$day=gmdate("d");     // Finds today's date
$year=gmdate("Y");     // Finds today's year

$no_of_days=gmdate('t',gmmktime(0,0,0,$month,1,$year)); // This is to calculate number of days in a month
$mn=gmdate('F',gmmktime(0,0,0,$month,1,$year)); // Month is calculated to display at the top of the calendar
$yn=gmdate('Y',gmmktime(0,0,0,$month,1,$year)); // Year is calculated to display at the top of the calendar
$j=gmdate('w',gmmktime(0,0,0,$month,1,$year)); // This will calculate the week day of the first day of the month

for($k=0;$k<=$j;$k++){ $adj="<td width='117' height='117' align='left' valign='top'> </td>"; }

/// top line showing name of the days of the week
echo"<table align='center' valign='top' border='0' cellpadding='5' cellspacing='2'>\n"
."<tr><td align='center' valign='middle' colspan='7'>".$mn." ".$yn."</td></tr>\n"
."<tr><td colspan='7' height='10'></td></tr>\n"
."<tr><td align='center' valign='middle'><b>Sun</b></td><td align='center' valign='middle'><b>Mon</b></td><td align='center' valign='middle'><b>Tue</b></td><td align='center' valign='middle'><b>Wed</b></td><td align='center' valign='middle'><b>Thu</b></td><td align='center' valign='middle'><b>Fri</b></td><td align='center' valign='middle'><b>Sat</b></td></tr>\n"
////// End of the top line showing name of the days of the week//////////

."<tr>";

for($i=1;$i<=$no_of_days;$i++){
	
	#if($i<10){$i="0".$i."";}
	
	$getevent_sql=@mysql_query("SELECT * FROM schedule WHERE date>='".gmmktime(0,0,0,$month,$i,$year)."' AND date<='".gmmktime(23,59,59,$month,$i,$year)."' ORDER BY date ASC, title ASC");
	$getevent_num=@mysql_num_rows($getevent_sql);
	
	$getevent_sql=@mysql_query("SELECT * FROM schedule WHERE date>='".gmmktime(0,0,0,$month,$i,$year)."' AND date<='".gmmktime(23,59,59,$month,$i,$year)."' ORDER BY date ASC, title ASC LIMIT 0,2");
	
	$calendardisplay_num=$getevent_num;
		
	echo "<td width='117' height='117' align='left' valign='top' class='";
		
		if ($i==$day) { echo"caltoday"; } else { echo"calday"; }
		
		echo"'><i><a href='./schedule.php?view=day&day=$i&month=$month&year=$year'>$i</a></i><br />";
		
		while($eventinfo=@mysql_fetch_array($getevent_sql)) {
			$id=$eventinfo['id'];
			$title=$eventinfo['title'];
		
			echo"<a href='./schedule.php?view=event&id=$id'>";
			
			if (strlen(substr("".str_replace("’", "'", "".$title."")."", 0,15))>=15) { echo"".substr("".str_replace("’", "'", "".$title."")."", 0,15)."..."; } else { echo"".str_replace("’", "'", "".$title."").""; }
	
			echo"</a><br />";
			
		}

	if($calendardisplay_num>2) { echo"<a href='./schedule.php?view=day&day=$i&month=$month&year=$year'><i><font class='smalltext'>...more</font></i></a>"; }
	
	echo"</td>"; // This will display the date inside the calendar cell
	$adj='';
	$j++;
	if($j==7){
		echo"</tr><tr>";
		$j=0;
	}
}

echo"</tr><tr><td height='3' colspan='7'></td></tr></table>\n";
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You have to put empty cells into the first row to fill up the space before the first day. If the month doesn't already start on Sunday, of course.

 

You should also pad the last row of the table with empty cells if the month doesn't end on Saturday.

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You have to put empty cells into the first row to fill up the space before the first day. If the month doesn't already start on Sunday, of course.

 

You should also pad the last row of the table with empty cells if the month doesn't end on Saturday.

 

yeah i tried that and i cant get the layout to stay correct. it either fills the page with empty cells apart from todays date or just one long table with no content! this is having my life i tell you!

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Ah, I skipped over that one line.

for($k=0;$k "; }
Couple problems:

1. If the month starts on Sunday then $j=0 and you should not be showing empty cells. So the for condition should be $k

2. You don't do anything with $adj.

 

You can forget about $adj entirely by moving the loop to just after that first

for weeks and outputting the empty cell immediately instead of putting it in a variable.
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Also, $adj will only ever be a single cell. You need something like

for($k=0, $adj=''; $k<$j; $k++){ $adj .= "<td width='117' height='117' align='left' valign='top'> </td>"; }
 

 

Ah, I skipped over that one line.

for($k=0;$k<=$j;$k++){ $adj="<td width='117' height='117' align='left' valign='top'> </td>"; }
Couple problems:

1. If the month starts on Sunday then $j=0 and you should not be showing empty cells. So the for condition should be $k<$j.

2. You don't do anything with $adj.

 

You can forget about $adj entirely by moving the loop to just after that first <tr> for weeks and outputting the empty cell immediately instead of putting it in a variable.

 

 

 

 

 

 

 

 

OK, so taking that into account i have added the line of code after the first <tr> and its made no difference. I think im doing it wrong (not suprising!);

<?php
class Calendar {  

    /**
    * calculate number of weeks in a particular month
    */
    private function _weeksInMonth($month=null,$year=null){
        if( null==($year) ) {
            $year =  date("Y",time()); 
        }
         
        if(null==($month)) {
            $month = date("m",time());
        }
         
        // find number of days in this month
        $daysInMonths = $this->_daysInMonth($month,$year);
        $numOfweeks = ($daysInMonths%7==0?0:1) + intval($daysInMonths/7);
        $monthEndingDay= date('N',strtotime($year.'-'.$month.'-'.$daysInMonths));
        $monthStartDay = date('N',strtotime($year.'-'.$month.'-01'));
         
        if($monthEndingDay<$monthStartDay){
            $numOfweeks++;
        }
        return $numOfweeks;
    }
 
    /**
    * calculate number of days in a particular month
    */
    private function _daysInMonth($month=null,$year=null){
        if(null==($year))
            $year =  date("Y",time()); 
 
        if(null==($month))
            $month = date("m",time());
             
        return date('t',strtotime($year.'-'.$month.'-01'));
    }

}
if(isset($prm) and $prm > 0){
$month=$prm+$chm;}else{
$month=gmdate("m");}	// Find today's month
$day=gmdate("d");     // Finds today's date
$year=gmdate("Y");     // Finds today's year

$no_of_days=gmdate('t',gmmktime(0,0,0,$month,1,$year)); // This is to calculate number of days in a month
$mn=gmdate('F',gmmktime(0,0,0,$month,1,$year)); // Month is calculated to display at the top of the calendar
$yn=gmdate('Y',gmmktime(0,0,0,$month,1,$year)); // Year is calculated to display at the top of the calendar
$j=gmdate('w',gmmktime(0,0,0,$month,1,$year)); // This will calculate the week day of the first day of the month

/// top line showing name of the days of the week
echo"<table align='center' valign='top' border='0' cellpadding='5' cellspacing='2'>\n"
."<tr><td align='center' valign='middle' colspan='7'>".$mn." ".$yn."</td></tr>\n"
."<tr><td colspan='7' height='10'></td></tr>\n"
."<tr><td align='center' valign='middle'><b>Sun</b></td><td align='center' valign='middle'><b>Mon</b></td><td align='center' valign='middle'><b>Tue</b></td><td align='center' valign='middle'><b>Wed</b></td><td align='center' valign='middle'><b>Thu</b></td><td align='center' valign='middle'><b>Fri</b></td><td align='center' valign='middle'><b>Sat</b></td></tr>\n"
////// End of the top line showing name of the days of the week//////////

."<tr>";

# code suggested from phpfreaks.com #
for($k=0, $adj=''; $k<$j; $k++){ $adj .= "<td width='117' height='117' align='left' valign='top'> </td>"; }
#####################################

for($i=1;$i<=$no_of_days;$i++){
	
	if($i<10){$i="0".$i."";}
	
	$getevent_sql=@mysql_query("SELECT * FROM schedule WHERE date>='".gmmktime(0,0,0,$month,$i,$year)."' AND date<='".gmmktime(23,59,59,$month,$i,$year)."' ORDER BY date ASC, title ASC");
	$getevent_num=@mysql_num_rows($getevent_sql);
	
	$getevent_sql=@mysql_query("SELECT * FROM schedule WHERE date>='".gmmktime(0,0,0,$month,$i,$year)."' AND date<='".gmmktime(23,59,59,$month,$i,$year)."' ORDER BY date ASC, title ASC LIMIT 0,2");
	
	$calendardisplay_num=$getevent_num;
		
	echo "<td width='117' height='117' align='left' valign='top' class='";
		
		if ($i==$day) { echo"caltoday"; } else { echo"calday"; }
		
		echo"'><i><a href='./schedule.php?view=day&day=$i&month=$month&year=$year'>$i</a></i><br />";
		
		while($eventinfo=@mysql_fetch_array($getevent_sql)) {
			$id=$eventinfo['id'];
			$title=$eventinfo['title'];
		
			echo"<a href='./schedule.php?view=event&id=$id'>";
			
			if (strlen(substr("".str_replace("’", "'", "".$title."")."", 0,15))>=15) { echo"".substr("".str_replace("’", "'", "".$title."")."", 0,15)."..."; } else { echo"".str_replace("’", "'", "".$title."").""; }
	
			echo"</a><br />";
			
		}

	if($calendardisplay_num>2) { echo"<a href='./schedule.php?view=day&day=$i&month=$month&year=$year'><i><font class='smalltext'>...more</font></i></a>"; }
	
	echo"</td>"; // This will display the date inside the calendar cell
	$adj='';
	$j++;
	if($j==7){
		echo"</tr><tr>";
		$j=0;
	}
}

echo"</tr><tr><td height='3' colspan='7'></td></tr></table>\n";

?>

 

 

Edited by benhullah
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  • Solution

OK, so taking that into account i have added the line of code after the first

and its made no difference. I think im doing it wrong (not suprising!);You still aren't actually using it. You set it, and you append to it, and you clear it, but you don't use it.
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You still aren't actually using it. You set it, and you append to it, and you clear it, but you don't use it.

Well, wouldn't you know. I played about with a few locations in the code to place the $adj variable and BOOM! problem resolved and layout is now perfect!

 

Thanks guys for ou help and guidance :)

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