I noticed that there wasn't much out there when it came to just simply displaying a calendar on a website. Most the examples I found were overly complicated. So, I came up with a little snippet of code that outputs a calendar for any given month and displays it as an HTML table.
<?php //prepare calendar
$date = $_REQUEST['date']; //date is a unix timestamp
$firstDay = date('w',mktime(0,0,0,date('m',$date),1,date('Y',$date)));
$numDays = date('t',$date);
$weeks = ceil(($numDays + $firstDay)/7);
$week = array();
$date = 1;
for($i=0;$i<$weeks;$i++) {
for($x=0;$x<7;$x++) {
if (($i == 0) & $x < $firstDay) {
$week[$i][] = NULL;
}
elseif ($date > $numDays) {
$week[$i][] = NULL;
}
else {
$week[$i][] = $date;
$date++;
}
}
}?>
<table class='calendar'>
<thead><tr><th colspan='7'><?=date('F Y',$date)?></th></tr></thead>
<thead><tr>
<th>Sun</th><th>Mon</th><th>Tue</th><th>Wed</th><th>Thr</th><th>Fri</th><th>Sat</th>
</tr></thead>
<tbody>
<?php //calendar generation
foreach ($week as $w) {
echo '<tr>';
foreach ($w as $day) {
echo '<td>'.$day.'</td>';
}
echo '</tr>';
}
?>
</tbody>
</table>