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<?
class calendar {
var $date;
function calendar($date) {
$this->date = $date;
}
function display() {
global $PHP_SELF;
### Extract information from the given date:
$month = date("n", $this->date);
$year = date("Y", $this->date);
$day = date("d", $this->date);
### Extract first day of the month:
$first = date("w", mktime(0, 0, 0, $month, 1, $year));
### Extract last day of the month:
$last = date("t", mktime(0, 0, 0, $month, 1, $year));
### Calculate previous and next months dates:
$prev = mktime(0, 0, 0, $month - 1, $day, $year);
$next = mktime(0, 0, 0, $month + 1, $day, $year);
### Generate calendar header:
$output .= "<TABLE WIDTH=\"150\" BORDER=\"1\" CELLSPACING=\"0\" CELLPADDING=\"2\">";
$output .= " <TR><TH COLSPAN=\"7\"><A HREF=\"$PHP_SELF?date=$prev\"><<</A> ". date("F Y", $this->date) ." <A HREF=\"$PHP_SELF?date=$next\">>></A></TH></TR>";
$output .= " <TR><TH>S</TH><TH>M</TH><TH>T</TH><TH>W</TH><TH>T</TH><TH>F</TH><TH>S</TH></TR>\n";
### Initialize temporary variables:
$nday = 1;
$sday = $first;
### Loop through all the days of the month:
while ($nday <= $last) {
### Set up blank days for first week of the month:
if ($first) {
$output .= "<TR><TD COLSPAN=\"$first\"> </TD>";
$first = 0;
}
### Start every week on a new line:
if ($sday == 0) $output .= "<TR>";
### Print one cell:
$date = mktime(0, 0, 0, $month, $nday, $year);
if ($nday == $day) $output .= "<TD ALIGN=\"center\"><B>$nday</B></TD>";
else if ($date > time()) $output .= "<TD ALIGN=\"center\">$nday</TD>";
else $output .= "<TD ALIGN=\"center\"><A HREF=\"$PHP_SELF?date=$date\">$nday</A></TD>";
### Start every week on a new line:
if ($sday == 6) $output .= "</TR>";
### Update temporary variables:
$sday++;
$sday = $sday % 7;
$nday++;
}
### End the calendar:
if ($sday != 0) {
$end = 7 - $sday;
$output .= "<TD COLSPAN=\"$end\"> </TD></TR>";
}
$output .= "</TABLE>";
### Return calendar:
return $output;
}
}
?>
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