PHP简单创建日历的方法

本文实例讲述了PHP简单创建日历的方法。分享给大家供大家参考，具体如下：

<?php

function build_calendar($month,$year) {

  // Create array containing abbreviations of days of week.

  $daysOfWeek = array('S','M','T','W','T','F','S');

  // What is the first day of the month in question?

  $firstDayOfMonth = mktime(0,0,0,$month,1,$year);

  // How many days does this month contain?

  $numberDays = date('t',$firstDayOfMonth);

  // Retrieve some information about the first day of the

  // month in question.

  $dateComponents = getdate($firstDayOfMonth);

  // What is the name of the month in question?

  $monthName = $dateComponents['month'];

  // What is the index value (0-6) of the first day of the

  // month in question.

  $dayOfWeek = $dateComponents['wday'];

  // Create the table tag opener and day headers

  $calendar = "<table class='calendar'>";

  $calendar .= "<caption>$monthName $year</caption>";

  $calendar .= "<tr>";

  // Create the calendar headers

  foreach($daysOfWeek as $day) {

     $calendar .= "<th class='header'>$day</th>";

  }

  // Create the rest of the calendar

  // Initiate the day counter, starting with the 1st.

  $currentDay = 1;

  $calendar .= "</tr><tr>";

  // The variable $dayOfWeek is used to

  // ensure that the calendar

  // display consists of exactly 7 columns.

  if ($dayOfWeek > 0) {

     $calendar .= "<td colspan='$dayOfWeek'> </td>";

  }

  $month = str_pad($month, 2, "0", STR_PAD_LEFT);

  while ($currentDay <= $numberDays) {

     // Seventh column (Saturday) reached. Start a new row.

     if ($dayOfWeek == 7) {

       $dayOfWeek = 0;

       $calendar .= "</tr><tr>";

     }

     $currentDayRel = str_pad($currentDay, 2, "0", STR_PAD_LEFT);

     $date = "$year-$month-$currentDayRel";

     $calendar .= "<td class='day' rel='$date'>$currentDay</td>";

     // Increment counters

     $currentDay++;

     $dayOfWeek++;

  }

  // Complete the row of the last week in month, if necessary

  if ($dayOfWeek != 7) {

     $remainingDays = 7 - $dayOfWeek;

     $calendar .= "<td colspan='$remainingDays'> </td>";

  }

  $calendar .= "</tr>";

  $calendar .= "</table>";

  return $calendar;

}

//调用方法

echo build_calendar(05,2016);

?>

希望本文所述对大家PHP程序设计有所帮助。