php/pcal.php

   1 <title>PeriodiCalendar</Title>
   2 <h1>PeriodiCal</h1>
   3 <small>Calendar with period highlighting ability</small>
   4 <?php if(!isset($_GET['last'])) { ?>
   5 <form action="?" method="GET">
   6         Last: <input type="text" name="last" value="2010-01-20" title="YYYY-MM-DD date of last occurence" />
   7         Periodicity: <input type="text" name="period" value="28" title="Periodicity of cycle in days" />
   8         Duration: <input type="text" name="len" value="7" title="Days to highlight from beginning of cycle" />
   9         Months: <input type="text" name="months" value="12" title="How many months you want to draw" />
  10         <input type="submit" value="DRAW" />
  11 </form>
  12
  13 <?php
  14         echo("\n<!-- OPEN SOURCE:\n");readfile(__FILE__);echo("\n-".'->');
  15 } else {
  16 //init
  17 error_reporting(0);
  18 $day = 60*60*24;
  19 //get numbers
  20 $now = time(); $now = mktime(12, 0, 0, date('n',$now), 1, date('Y',$now));
  21 $last = date_parse_from_format('Y-m-d', $_GET['last']);
  22 $last = mktime(12, 0, 0, $last['month'], $last['day'], $last['year']);
  23 $period=28; if(isset($_GET['period'])) $period = $_GET['period'];
  24 $length=7; if(isset($_GET['len'])) $length = $_GET['len'];
  25 $months=12; if(isset($_GET['months'])) $months = $_GET['months'];
  26
  27 echo('<table border=1>');
  28 $r = 0;
  29 for($i=0;$i<$months;$i++) {
  30         $lm = $m = date('m',$now);
  31         $mo = date('M',$now);
  32         echo("<tr><td bgcolor='lightblue'><b>$m ($mo)</b></td>");
  33         while($m == $lm) {
  34                 if(round(($now-$last)/$day)%($period) == 0) $r = $length;
  35                 $c = '';
  36                 if($r>0) $c = '#FF0000';
  37                 if($r==1 || $r==$length) $c = '#FF7777';
  38                 $r--;
  39                 echo("<td bgcolor='$c'>".date('d', $now).'</td>');
  40                 $now += $day;
  41                 $m = date('m',$now);
  42         }
  43         echo('</tr>');
  44 }
  45 echo('</table><small>You can bookmark this page it will get updated automatically each month.</small>');
  46 }