Problem with Calendar Dates

[steelej]

I'm in a spot here.  I'm trying to troubleshoot an applicaton built by someone else.  It is a tutor appointment scheduler.  It is working fine except that it seems to think all month's have 30 days.  I'm trying to ferret out the error and I think it's in the code below, but I'm having trouble making sense of it:

// print a week
    $today = date("w"); //number of day of the week
$month = date("m");
$day = date("d");
$year = date("y");
$times = array(1=>"8:00",2=>"8:30",3=>"9:00",4=>"9:30",5=>"10:00",6=>"10:30",7=>"11:00",8=>"11:30",9=>"12:00",10=>"12:30",11=>"1:00",12=>"1:30",13=>"2:00",14=>"2:30",15=>"3:00",16=>"3:30",17=>"4:00",18=>"4:30" );
$week = array(1=>"Monday",2=>"Tuesday",3=>"Wednesday",4=>"Thursday",5=>"Friday",6=>"Saturday",7=>"Sunday");


for ( $d=0; $d < 7; $d++)
{
if ($day<10)
$day = sprintf( "%02d", $day);
if ($month<10)
$month = sprintf( "%02d", $month);

echo '<table border="0">'."\n";
echo "<tr>\n";
echo "<td><u>".$week[(($today+$d)%7)]."</u></td>\n";
echo "</tr>\n";
echo "<tr>\n";

if ( date("l", mktime(0, 0, 0, $month, $day, $year)) != "Sunday")
echo "<td>".$month.'/'.$day.'/'.$year."</td>\n";

echo "</tr>\n";

[redarrow]

barand made this for me to learn calender in php hope this helps.

// remember we all crawl before we walk good luck.

[code]
CREATE TABLE room_booking (
`bookID` int(11)  NOT NULL auto_increment,
`clientID` int(11)  NOT NULL ,
`roomID` int(11)  NOT NULL ,
`arrive` date  NOT NULL DEFAULT '0000-00-00',
`depart` date  NOT NULL DEFAULT '0000-00-00',
`nights` int(11)  NOT NULL ,
`discount` varchar(100)  NOT NULL ,
`status` tinyint(1)  NOT NULL ,
PRIMARY KEY(bookID)
);

INSERT INTO room_booking VALUES ('1', '1', '1', '2006-06-30', '2006-07-02', '2', '0', '1');
INSERT INTO room_booking VALUES ('2', '2', '1', '2006-07-07', '2006-07-11', '3', '0', '2');
INSERT INTO room_booking VALUES ('3', '3', '1', '2006-07-14', '2006-07-17', '2', '0', '1');
INSERT INTO room_booking VALUES ('4', '4', '2', '2006-07-07', '2006-07-11', '3', '0', '2');
INSERT INTO room_booking VALUES ('5', '1', '2', '2006-07-14', '2006-07-19', '4', '0', '2');
INSERT INTO room_booking VALUES ('6', '3', '4', '2006-07-14', '2006-07-29', '14', '0', '3');

[/code]

Calendar script
[code]
Code:
<?php
include('db.php');

$cal_start = isset($_GET['cal_start']) ? $_GET['cal_start'] : mktime(0,0,0);
$cal_days = $bookings = array();
  // dates for calendar display
for ($i=0; $i<28; $i++) {
$cal_days[] = strtotime("+$i days", $cal_start);
}
// create room booking array
for ($r=1; $r<=4; $r++) {
$bookings[$r]=array();
foreach($cal_days as $cd) {
$bookings[$r][$cd] = 0;
}
}

$cal_end = end($cal_days);
  // get bookings for calendar period and put in array
$d1 = date('Y-m-d', $cal_start);
$d2 = date('Y-m-d', $cal_end);
$sql = "SELECT b.bookID, b.clientID, b.roomID, b.arrive, b.depart, b.status
FROM room_booking b
WHERE ((b.arrive BETWEEN '$d1' AND '$d2') OR
  (b.depart BETWEEN '$d1' AND '$d2'))
ORDER BY b.roomID, b.arrive";
$res = mysql_query($sql) or die(mysql_error());
while (list($bid, $cid, $rid, $arr, $dep, $stat) = mysql_fetch_row($res)) {
for ($d=strtotime($arr); $d<=strtotime("$dep -1 days"); $d+=86400) {
if (isset($bookings[$rid][$d])) $bookings[$rid][$d] = $stat;
}
}
  // calc prev and next weeks
$prevweek = strtotime('-7 days', $cal_start);
$nextweek = strtotime('+7 days', $cal_start);

function display_calendar (&$dates, &$bookings, $prev, $next) {
echo "<table cellspacing='0' cellpadding='0' >\n";
echo "<TR><TH><a href='?cal_start=$prev'>&lt;</a></TH>
<TH colspan='27'>Fawlty Towers Guest House<br>Room Bookings</TH>
<TH><a href='?cal_start=$next'>&gt;</a></TH></TR>";
// dates
echo "<TR>\n";
echo "<TH>Room</TH>" ;
foreach ($dates as $day) {
switch (date('w', $day)) {
case 0:
case 6: $class = 'class=wkend'; break;
default: $class = '';
}
echo "<TH $class>".date('M', $day).'<br>'.date('j', $day)."</TH>\n";
}
echo "</TR>\n";

// rooms
foreach ($bookings as $room => $rmdata) {
display_room_bookings ($room, $rmdata);
}
echo "</table><br>\n";
display_key();
}

function display_room_bookings ($room, $rmdata) {
echo "<TR><TH>$room</TH>\n";
foreach ($rmdata as $dt=>$status) {
switch ($status) {
case 1: $class = 'class=booked'; break;
case 2: $class = 'class=conf'; break; 
case 3: $class = 'class=paid'; break; 
default: $class = ''; break; 
}
echo "<TD $class>&nbsp;</TD>\n";
}
}

function display_key() {
echo '<table cellspacing="0">
<tr><td>Free</td>
<td class="booked">Booked</td>
<td class="conf">Confirmed</td>
<td class="paid">Paid</td>
</tr></table>';
}

?>
<html>
<head>
<meta name="generator" content="PhpED Version 4.5 (Build 4513)">
<title>Sample bookings calendar</title>
<meta name="author" content="Barand">
<meta name="creation-date" content="07/15/2006">
<style type='text/css'>
        table {
        border-left: 1px solid gray;
        border-top:  1px solid gray;
        width: 90%;
        }
        th {
        border-right: 1px solid gray;
        border-bottom:  1px solid gray;
        font-family: sans-serif;
        font-size: 0.75em;
        font-weight: 700;
        background-color: #E0E0E0;
        height : 20px;
        width: 3.5%
        }
        th.wkend {
        background-color: #C0C0C0;
        }
        td {
        border-right: 1px solid gray;
        border-bottom:  1px solid gray;
        font-family: sans-serif;
        font-size: 0.75em;
        font-weight: 300;
        text-align: center;
        width: 25px;
        height : 20px;
        background-color: #C0FFC0;
        }
        td.booked {
        background-color: #FFFFC0;
        }
        td.conf {
        background-color: #DFC868;
        }
        td.paid {
        background-color: #FF8080;
        }
</style>
</head>
<body>
<?php display_calendar ($cal_days, $bookings, $prevweek, $nextweek)?>
</body>
</html>
[/code]