Providing Forward and Backward Navigation

You can allow the user to move backwards and forwards a month at a time in Month View, or a year at a time in Year View.

This is done be creating a new class which extends the Calendar class. This new class should define the function getCalendarLink:

getCalendarLink($month, $year): Return the URL to link to in order to display a calendar for a given month/year. You must override this method if you want to activate the "forward" and "back" feature of the calendar.
Note: If you return an empty string from this function, no navigation link will be displayed. This is the default behaviour.
If the calendar is being displayed in "year" view, $month will be set to zero.

class MyCalendar extends Calendar
{
    function getCalendarLink($month, $year)
    {
        // Redisplay the current page, but with some parameters
        // to set the new month and year
        $s = getenv('SCRIPT_NAME');
        return "$s?month=$month&year=$year";
    }
}

You can then display the calendar as follows:

<?
// If no month/year set, use current month/year
 
$d = getdate(time());

if ($month == "")
{
    $month = $d["mon"];
}

if ($year == "")
{
    $year = $d["year"];
}

$cal = new MyCalendar;
echo $cal->getMonthView($month, $year);
?>

Which looks like this:

Creating a Simple Calendar
Creating a Calendar for a Specific Date
Setting Styles
Changing the Calendar Labels
Setting the Start Day
Setting the Start Month
Providing Forward and Backward Navigation
Linking Dates

Back to the Calendar page

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