How To Create Event Calendar in PHP

<?php
/* ********* Simple Event Calander in PHP *****
** http://php.about.com/od/finishedphp1/ss/php_calendar.htm
*** with Code modified By Snyxius Developer
*/
 //This gets today's date 
$date =time () ;
 //This puts the day, month, and year in seperate variables
$day = date('d', $date) ;
$month = date('m', $date) ;
$year = date('Y', $date) ;
 //Here we generate the first day of the month 
$first_day = mktime(0,0,0,$month, 1, $year) ;
 //This gets us the month name
$title = date('F', $first_day) ;
//Here we find out what day of the week the first day of the month falls on
$day_of_week = date('D', $first_day) ;
 /*  
Once we know what day of the week it falls on, we know how many blank days occure before it. 
If the first day of the week is a Sunday then it would be zero 
 */

 switch($day_of_week){
 case "Sun":
$blank = 0;
break;
 case "Mon":
$blank = 1;
break;
 case "Tue":
$blank = 2;
break;
 case "Wed":
$blank = 3;
break;
 case "Thu":
$blank = 4;
break;
 case "Fri":
$blank = 5;
break;
 case "Sat":
$blank = 6;
break;
 }
 /*
Here we take a closer look at the days of the month and prepare to make our calendar table.
The first thing we do is determine what day of the week the first of the month falls. 
Once we know that, we use the switch () function to determine how many blank days we need 
in our calendar before the first day.
Next we count the total days of the month. Now that we know how many 'blank' days we need, 
and how many total days are in the month we can start to generate our calendar.
 */
 //We then determine how many days are in the current month
$days_in_month = cal_days_in_month(0, $month, $year);


//Here we start building the table heads
echo "<table border=1 width=294>";
echo "<tr><th colspan=7> $title $year </th></tr>";
echo "<tr>
<td width=42>S</td>
<td width=42>M</td>
<td width=42>T</td>
<td width=42>W</td>
<td width=42>T</td>
<td width=42>F</td>
<td width=42>S</td>
</tr>";
//This counts the days in the week, up to 7
$day_count = 1;
echo "<tr>";
//first we take care of those blank days
while($blank>0)
{
echo "<td></td>";
$blank = $blank-1;
$day_count++;
}
/*
The first part of this code very simply echos the table tags, the month name, and the headings for the days of 
the week. Then we start a while loop. What we are doing is echoing empty table details, one for each 
blank day we count down. Once the blank days are done it stops. At the same time, our $day_count 
is going up by 1 each time through the loop. This is to keep count so that we do not try to put 
more than seven days in a week. 
*/

//sets the first day of the month to 1
$day_num = 1;
 //count up the days, untill we've done all of them in the month
while ( $day_num <= $days_in_month )
{
echo "<td> $day_num </td>";
$day_num++;
$day_count++;
//Make sure we start a new row every week
if($day_count > 7)
{
echo "</tr><tr>";
$day_count = 1;
}
}
/*
Now we need to fill in the days of the month. We do this with another while loop, 
but this time we are counting up to the last day of the month. Each cycle echos a table detail 
with the day of the month, and it repeats until we reach the last day of the month.
Our loop also contains a conditional statement. This checks if the days of the week have reached 7, 
the end of the week. If it has, it starts a new row, 
and resets the counter back to 1 (the first day of the week).
*/
//Finaly we finish out the table with some blank details if needed
while ( $day_count >1 && $day_count <=7 )
{
echo "<td> </td>";
$day_count++;
}
 echo "</tr></table>";

/* Calander Code Ends ****/

?>