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php Calender(日历)代码分享

程序员文章站 2023-11-16 22:46:22
代码如下: 复制代码 代码如下:

代码如下:

复制代码 代码如下:

<?php
/**
 *
 * 我的日历
 * date_default_timezone_set date mktime
 * @param int $year
 * @param int $month
 * @param string $timezone
 * @author fc_lamp
 */
function mycalender($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;
}