Page 1 of 1

My calendar isn't displaying the previous and next links???

Posted: Thu Jul 27, 2006 4:57 pm
by cturner
Can someone please help me solve this problem? Can someone please help me code the previous and next links? Thanks in advance.

Here is the code for the calendar:

Code: Select all

function generate_calendar($year, $month, $days = array(), $day_name_length = 3, $month_href = NULL, $first_day = 0, $pn = array()){
    $first_of_month = gmmktime(0,0,0,$month,1,$year);
    # remember that mktime will automatically correct if invalid dates are entered
    # for instance, mktime(0,0,0,12,32,1997) will be the date for Jan 1, 1998
    # this provides a built in "rounding" feature to generate_calendar()
	
    $day_names = array(); # generate all the day names according to the current locale
    for($n=0,$t=(3+$first_day)*86400; $n<7; $n++,$t+=86400) # January 4, 1970 was a Sunday
        $day_names[$n] = ucfirst(gmstrftime('%A',$t)); # %A means full textual day name

    list($month, $year, $month_name, $weekday) = explode(',',gmstrftime('%m,%Y,%B,%w',$first_of_month));
    $weekday = ($weekday + 7 - $first_day) % 7; # adjust for $first_day
    $title   = htmlentities(ucfirst($month_name)).'&nbsp;'.$year;  # note that some locales don't capitalize month and day names

    # Begin calendar.
    @list($p, $pl) = each($pn); @list($n, $nl) = each($pn); # previous and next links, if applicable
	$pn = array('&laquo;'=>'/weblog/archive/2004/Jul', '&raquo;'=>'/weblog/archive/2004/Sep');
    if($p) $p = '<span class="calendar-prev">'.($pl ? '<a href="'.htmlspecialchars($pl).'">'.$p.'</a>' : $p).'</span>&nbsp;';
    if($n) $n = '&nbsp;<span class="calendar-next">'.($nl ? '<a href="'.htmlspecialchars($nl).'">'.$n.'</a>' : $n).'</span>';
    $calendar = '<table class="calendar">'."\n".
        '<caption class="calendar-month">'.$p.($month_href ? '<a href="'.htmlspecialchars($month_href).'">'.$title.'</a>' : $title).$n."</caption>\n<tr>";	

    if($day_name_length){ # if the day names should be shown ($day_name_length > 0)
        # if day_name_length is >3, the full name of the day will be printed
        foreach($day_names as $d)
            $calendar .= '<th abbr="'.htmlentities($d).'">'.htmlentities($day_name_length < 4 ? substr($d,0,$day_name_length) : $d).'</th>';
        $calendar .= "</tr>\n<tr>";
    }
	
	$time = time();
	$today = date('j',$time);
	$days = array($today=>array(NULL,NULL,'<b>'.$today.'</b>')); # highlight the current day

    if($weekday > 0) $calendar .= '<td colspan="'.$weekday.'">&nbsp;</td>'; # initial 'empty' days
    for($day=1,$days_in_month=gmdate('t',$first_of_month); $day<=$days_in_month; $day++,$weekday++){
        if($weekday == 7){
            $weekday   = 0; # start a new week
            $calendar .= "</tr>\n<tr>";
        }
        if(isset($days[$day]) and is_array($days[$day])){
            @list($link, $classes, $content) = $days[$day];
            if(is_null($content))  $content  = $day;
            $calendar .= '<td'.($classes ? ' class="'.htmlspecialchars($classes).'">' : '>').
                ($link ? '<a href="'.htmlspecialchars($link).'">'.$content.'</a>' : $content).'</td>';
        }
        else  $calendar .= '<td><a href="calendar.php?day='.$day.'">'.$day.'</a></td>';
    }
    if($weekday != 7) $calendar .= '<td colspan="'.(7-$weekday).'">&nbsp;</td>'; # remaining "empty" days

    return $calendar."</tr>\n</table>\n";
}

echo generate_calendar(2006, 7, $days, 3, NULL, 0, $pn, date('Y', $time), date('n', $time), $days);

Posted: Thu Jul 27, 2006 8:02 pm
by Ambush Commander
While this is a really clunky piece of procedural that should be factored into objects, here's the trick: pass parameters (like page.php?year=2005&month=2) to the page.

If you want me to get anymore specific, we're going to refactor the entire function.