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Build a Calendar Table

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  1. <?php
  2.  
  3. function build_calendar($month,$year,$dateArray) {
  4.  
  5.      // Create array containing abbreviations of days of week.
  6.      $daysOfWeek = array('S','M','T','W','T','F','S');
  7.  
  8.      // What is the first day of the month in question?
  9.      $firstDayOfMonth = mktime(0,0,0,$month,1,$year);
  10.  
  11.      // How many days does this month contain?
  12.      $numberDays = date('t',$firstDayOfMonth);
  13.  
  14.      // Retrieve some information about the first day of the
  15.      // month in question.
  16.      $dateComponents = getdate($firstDayOfMonth);
  17.  
  18.      // What is the name of the month in question?
  19.      $monthName = $dateComponents['month'];
  20.  
  21.      // What is the index value (0-6) of the first day of the
  22.      // month in question.
  23.      $dayOfWeek = $dateComponents['wday'];
  24.  
  25.      // Create the table tag opener and day headers
  26.  
  27.      $calendar = "<table class='calendar'>";
  28.      $calendar .= "<caption>$monthName $year</caption>";
  29.      $calendar .= "<tr>";
  30.  
  31.      // Create the calendar headers
  32.  
  33.      foreach($daysOfWeek as $day) {
  34.           $calendar .= "<th class='header'>$day</th>";
  35.      } 
  36.  
  37.      // Create the rest of the calendar
  38.  
  39.      // Initiate the day counter, starting with the 1st.
  40.  
  41.      $currentDay = 1;
  42.  
  43.      $calendar .= "</tr><tr>";
  44.  
  45.      // The variable $dayOfWeek is used to
  46.      // ensure that the calendar
  47.      // display consists of exactly 7 columns.
  48.  
  49.      if ($dayOfWeek > 0) {
  50.           $calendar .= "<td colspan='$dayOfWeek'>&nbsp;</td>";
  51.      }
  52.  
  53.      $month = str_pad($month, 2, "0", STR_PAD_LEFT);
  54.  
  55.      while ($currentDay <= $numberDays) {
  56.  
  57.           // Seventh column (Saturday) reached. Start a new row.
  58.  
  59.           if ($dayOfWeek == 7) {
  60.  
  61.                $dayOfWeek = 0;
  62.                $calendar .= "</tr><tr>";
  63.  
  64.           }
  65.  
  66.           $currentDayRel = str_pad($currentDay, 2, "0", STR_PAD_LEFT);
  67.  
  68.           $date = "$year-$month-$currentDayRel";
  69.  
  70.           $calendar .= "<td class='day' rel='$date'>$currentDay</td>";
  71.  
  72.           // Increment counters
  73.  
  74.           $currentDay++;
  75.           $dayOfWeek++;
  76.  
  77.      }
  78.  
  79.      // Complete the row of the last week in month, if necessary
  80.  
  81.      if ($dayOfWeek != 7) { 
  82.  
  83.           $remainingDays = 7 - $dayOfWeek;
  84.           $calendar .= "<td colspan='$remainingDays'>&nbsp;</td>"; 
  85.  
  86.      }
  87.  
  88.      $calendar .= "</tr>";
  89.  
  90.      $calendar .= "</table>";
  91.  
  92.      return $calendar;
  93.  
  94. }
  95.  
  96. ?> 
  97.  
  98.  
  99.  
  100.  
  101.  
  102.  
  103. Usage
  104.  
  105. Build a calendar of the current month:
  106.  
  107. <?php
  108.  
  109.      $dateComponents = getdate();
  110.  
  111.      $month = $dateComponents['mon'];
  112.      $year = $dateComponents['year'];
  113.  
  114.      echo build_calendar($month,$year,$dateArray);
  115.  
  116. ?>

URL: http://css-tricks.com/snippets/php/build-a-calendar-table/

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