How to develop a calendar in PHP

One of the site emphasizes my clients adoration to supplier their web clients is an online dynamic calendar. An online calendar could be utilized for occasions, approaching item specials, notices, and all else you can consider. I’ve taken sooner or later to totally rework the PHP occasion calendar so I may impart it to you.

PHP code

/* draws a calendar */
function draw_calendar($month,$year){

	/* draw table */
	$calendar = '<table cellpadding="0" cellspacing="0" class="calendar">';

	/* table headings */
	$headings = array('Sunday','Monday','Tuesday','Wednesday','Thursday','Friday','Saturday');
	$calendar.= '<tr class="calendar-row"><td class="calendar-day-head">'.implode('</td><td class="calendar-day-head">',$headings).'</td></tr>';

	/* days and weeks vars now ... */
	$running_day = date('w',mktime(0,0,0,$month,1,$year));
	$days_in_month = date('t',mktime(0,0,0,$month,1,$year));
	$days_in_this_week = 1;
	$day_counter = 0;
	$dates_array = array();

	/* row for week one */
	$calendar.= '<tr class="calendar-row">';

	/* print "blank" days until the first of the current week */
	for($x = 0; $x < $running_day; $x++):
		$calendar.= '<td class="calendar-day-np"> </td>';
		$days_in_this_week++;
	endfor;

	/* keep going with days.... */
	for($list_day = 1; $list_day <= $days_in_month; $list_day++):
		$calendar.= '<td class="calendar-day">';
			/* add in the day number */
			$calendar.= '<div class="day-number">'.$list_day.'</div>';

			/** QUERY THE DATABASE FOR AN ENTRY FOR THIS DAY !!  IF MATCHES FOUND, PRINT THEM !! **/
			$calendar.= str_repeat('<p> </p>',2);
			
		$calendar.= '</td>';
		if($running_day == 6):
			$calendar.= '</tr>';
			if(($day_counter+1) != $days_in_month):
				$calendar.= '<tr class="calendar-row">';
			endif;
			$running_day = -1;
			$days_in_this_week = 0;
		endif;
		$days_in_this_week++; $running_day++; $day_counter++;
	endfor;

	/* finish the rest of the days in the week */
	if($days_in_this_week < 8):
		for($x = 1; $x <= (8 - $days_in_this_week); $x++):
			$calendar.= '<td class="calendar-day-np"> </td>';
		endfor;
	endif;

	/* final row */
	$calendar.= '</tr>';

	/* end the table */
	$calendar.= '</table>';
	
	/* all done, return result */
	return $calendar;
}

/* sample usages */
echo '<h2>July 2009</h2>';
echo draw_calendar(7,2009);

echo '<h2>August 2009</h2>';
echo draw_calendar(8,2009);

CSS code

/* calendar */
table.calendar		{ border-left:1px solid #999; }
tr.calendar-row	{  }
td.calendar-day	{ min-height:80px; font-size:11px; position:relative; } * html div.calendar-day { height:80px; }
td.calendar-day:hover	{ background:#eceff5; }
td.calendar-day-np	{ background:#eee; min-height:80px; } * html div.calendar-day-np { height:80px; }
td.calendar-day-head { background:#ccc; font-weight:bold; text-align:center; width:120px; padding:5px; border-bottom:1px solid #999; border-top:1px solid #999; border-right:1px solid #999; }
div.day-number		{ background:#999; padding:5px; color:#fff; font-weight:bold; float:right; margin:-5px -5px 0 0; width:20px; text-align:center; }
/* shared */
td.calendar-day, td.calendar-day-np { width:120px; padding:5px; border-bottom:1px solid #999; border-right:1px solid #999; }