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phpCalender(日历）代码

作者：佚名      php网站开发编辑：admin      更新时间：2022-07-23
<?php
/**
 * 
 * 我的日历
 * date_default_timezone_set date mktime
 * @param int $year
 * @param int $month
 * @param string $timezone
 * @author fc_lamp
 * @blog: http://www.cnblogs.com/roucheng/
 */
function myCalender($year = '', $month = '', $timezone = 'Asia/Shanghai')
{
    
    date_default_timezone_set ( $timezone );
    $year = abs ( intval ( $year ) );
    $month = abs ( intval ( $month ) );
    
    //是否是32位机
    if (is32())
    {
        if ($year < 1970 or $year >= 2038)
        {
            $year = date ( 'Y' );
        }
    } else
    {
        if ($year <= 0)
        {
            $year = date ( 'Y' );
        }
    
    }
    
    if ($month <= 0 or $month > 12)
    {
        $month = date ( 'm' );
    }
    
    //上一年
    $PRetYear = $year - 1;
    //上一月
    $mpYear = $year;
    $preMonth = $month - 1;
    if ($preMonth <= 0)
    {
        $preMonth = 1;
        $mpYear = $pretYear;
    }
    
    //下一年
    $nextYear = $year + 1;
    //下一月
    $mnYear = $year;
    $nextMonth = $month + 1;
    if ($nextMonth > 12)
    {
        $nextMonth = 1;
        $mnYear = $nextYear;
    }
    
    //日历头
    $html = <<<HTML
<table width="500" border="1">
  <tr align="center">
    <td><a href="?y=$pretYear">上一年</a></td>
    <td><a href="?y=$mpYear&m=$preMonth">上一月</a></td>
     <td><a href="?">回到今天</a></td>
    <td><a href="?y=$mnYear&m=$nextMonth">下一月</a></td>
    <td><a href="?y=$nextYear">下一年</a></td>
  </tr>
  <tr align="center">
    <td colspan="5">{$year}年{$month}月</td>
  </tr>
  <tr>
      <td colspan="5">
        <table width="100%" border="1">
            <tr align="center">
                <td style="background-color:#DAF0DD;">星期一</td>
                <td style="background-color:#DAF0DD;">星期二</td>
                <td style="background-color:#DAF0DD;">星期三</td>
                <td style="background-color:#DAF0DD;">星期四</td>
                <td style="background-color:#DAF0DD;">星期五</td>
                <td style="background-color:#F60;color:#fff;font-weight: bold;">星期六</td>
                <td style="background-color:#F60;color:#fff;font-weight: bold;">星期天</td>
            </tr>
HTML;
    
    $currentDay = date ( 'Y-m-j' );
    
    //当月最后一天
    $lastday = date ( 'j', mktime ( 0, 0, 0, $nextMonth, 0, $year ) );
    
    //循环输出天数
    $day = 1;
    $line = '';
    while ( $day <= $lastday )
    {
        $cday = $year . '-' . $month . '-' . $day;
        
        //当前星期几
        $nowWeek = date ( 'N', mktime ( 0, 0, 0, $month, $day, $year ) );
        
        if ($day == 1)
        {
            $line = '<tr align="center">';
            $line .= str_repeat ( '<td> </td>', $nowWeek - 1 );
        }
        
        if ($cday == $currentDay)
        {
            $style = 'style="color:red;"';
        } else
        {
            $style = '';
        }
        
        $line .= "<td $style>$day</td>";
        
        //一周结束
        if ($nowWeek == 7)
        {
            $line .= '</tr>';
            $html .= $line;
            $line = '<tr align="center">';
        }
        
        //全月结束
        if ($day == $lastday)
        {
            if ($nowWeek != 7)
            {
                $line .= str_repeat ( '<td> </td>', 7 - $nowWeek );
            }
            $line .= '</tr>';
            $html .= $line;
            
            break;
        }
        
        $day ++;
    }
    
    $html .= <<<HTML
        </table>    
    </td>
  </tr>
</table>
HTML;
    return $html;
}

/**
 * 
 * 检测是否是32位机
 * @author fc_lamp
 * @blog: fc-lamp.blog.163.com
 */
function is32()
{
    $is32 = False;
    if (strtotime ( '2039-10-10' ) === False)
    {
        $is32 = True;
    }
    return $is32;
}