php简单的日历程序代码

时间：2015-01-23 来源：西部数据作者：西部数据

PHP提供了date()函数,该函数提供了丰富的日期处理功能,现在需要获得的数据有两个,第一个是当月的总天数,第二个是该月的第一天所在星期中的第几天,数字表示0（表示星期天）到6（表示星期六）.

通过date()函数可以很容易获得上面的数据,代码如下:

<?php

$month = $_GET['m']?$_GET['m']:date(‘n’);

$year = $_GET['y']?$_GET['y']:date(‘Y’);

$start_week = date(‘w’,mktime(0,0,0,$month,1,$year));

$day_num = date(‘t’,mktime(0,0,0,$month,1,$year));

$end = false;

?>

<table>

<tr>

<td>星期日</td><td>星期一</td><td>星期二</td><td>星期三</td><td>星期四</td><td>星期五</td><td>星期六</td>

</tr>

<tr>

<?php

for($i = 0; $i<$start_week; $i++)

{

echo “<td></td>”;

}

$j=1;

while($j<=$day_num)

{

echo “<td>$j</td>”;

$week = ($start_week+$j-1)%7;

if($week ==6){

echo “nt</tr>n”;

if($j != $day_num)

echo “t<tr>ntt”;

else $end = true;

}

$j++;

}

while($week%7 != 6)

{

echo “<td></td>”;

$week++;

}

if(!$end)

echo “n</tr>”;

?>

</table>

高级一点类

代码如下复制代码

<?php

class Calendar

{

    private $year;

    private $month;

    private $weeks  = array('日','一','二','三','四','五','六');



    function __construct($options = array()) {

        $this->year = date('Y');

        $this->month = date('m');



        $vars = get_class_vars(get_class($this));

        foreach ($options as $key=>$value) {

            if (array_key_exists($key, $vars)) {

                $this->$key = $value;

            }

        }

    }



    function display()

    {

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

        $this->showChangeDate();

        $this->showWeeks();

        $this->showDays($this->year,$this->month);

        echo '</table>';

    }



    private function showWeeks()

    {

        echo '<tr>';

        foreach($this->weeks as $title)

        {

            echo '<th>'.$title.'</th>';

        }

        echo '</tr>';

    }



    private function showDays($year, $month)

    {

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

        $starDay = date('w', $firstDay);

        $days = date('t', $firstDay);

        echo '<tr>';

        for ($i=0; $i<$starDay; $i++) {

            echo '<td> </td>';

        }



        for ($j=1; $j<=$days; $j++) {

            $i++;

            if ($j == date('d')) {

                echo '<td class="today">'.$j.'</td>';

            } else {

                echo '<td>'.$j.'</td>';

            }

            if ($i % 7 == 0) {

                echo '</tr><tr>';

            }

        }



        echo '</tr>';

    }



    private function showChangeDate()

    {



        $url = basename($_SERVER['PHP_SELF']);



        echo '<tr>';

echo '<td><a href="?'.$this->preYearUrl($this->year,$this->month).'">'.'<<'.'</a></td>';

echo '<td><a href="?'.$this->preMonthUrl($this->year,$this->month).'">'.'<'.'</a></td>';

        echo '<td colspan="3"><form>';



        echo '<select name="year" onchange="window.location=''.$url.'?year='+this.options[selectedIndex].value+'&month='.$this->month.''">';

        for($ye=1970; $ye<=2038; $ye++) {

            $selected = ($ye == $this->year) ? 'selected' : '';

            echo '<option '.$selected.' value="'.$ye.'">'.$ye.'</option>';

        }

        echo '</select>';

        echo '<select name="month" onchange="window.location=''.$url.'?year='.$this->year.'&month='+this.options[selectedIndex].value+''">';





        for($mo=1; $mo<=12; $mo++) {

            $selected = ($mo == $this->month) ? 'selected' : '';

            echo '<option '.$selected.' value="'.$mo.'">'.$mo.'</option>';

        }

        echo '</select>';

        echo '</form></td>';

echo '<td><a href="?'.$this->nextMonthUrl($this->year,$this->month).'">'.'>'.'</a></td>';

echo '<td><a href="?'.$this->nextYearUrl($this->year,$this->month).'">'.'>>'.'</a></td>';

        echo '</tr>';

    }



    private function preYearUrl($year,$month)

    {

        $year = ($this->year <= 1970) ? 1970 : $year - 1 ;



        return 'year='.$year.'&month='.$month;

    }



    private function nextYearUrl($year,$month)

    {

        $year = ($year >= 2038)? 2038 : $year + 1;



        return 'year='.$year.'&month='.$month;

    }



    private function preMonthUrl($year,$month)

    {

        if ($month == 1) {

            $month = 12;

            $year = ($year <= 1970) ? 1970 : $year - 1 ;

        } else {

            $month--;

        }



        return 'year='.$year.'&month='.$month;

    }



    private function nextMonthUrl($year,$month)

    {

        if ($month == 12) {

            $month = 1;

            $year = ($year >= 2038) ? 2038 : $year + 1;

        }else{

            $month++;

        }

        return 'year='.$year.'&month='.$month;

    }



}

调用方法

代码如下复制代码

<?php

$params = array();

if (isset($_GET['year']) && isset($_GET['month'])) {

    $params = array(

        'year' => $_GET['year'],

        'month' => $_GET['month'],

    );

}

$params['url']  = 'demo.php';

require_once 'calendar.class.php';

?>

<html>

    <head>

        <title>日历demo</title>

        <meta http-equiv="Content-Type" content="text/html" charset="UTF-8" />

        <style type="text/css">

            table.calendar {

                border: 1px solid #050;

            }

            .calendar th, .calendar td {

                width:30px;

                text-align:center;

            }

            .calendar th {

                background-color:#050;

                color:#fff;

            }

            .today{

  color:#fff;

  background-color:#050;

//开源代码phpfensi.com

            }

        </style>

    </head>

    <body>

        <div style="align:center">

            <?php

                $cal = new Calendar($params);

                $cal->display();

            ?>

        </div>

    </body>

</html>