php calender(日历)二个版本代码示例(解决2038问题)

摘要：注意32位机有2038问题，所以32位服务器的年限范围1970年~2038年我们还可以使用DateTime来规避这个问题(这样与32位64位...

注意32位机有2038问题，所以32位服务器的年限范围1970年~2038年

我们还可以使用DateTime来规避这个问题(这样与32位64位无关了)

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

* @blog: fc-lamp.blog.163.com

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

</tr>

<td colspan="5">{$year}年{$month}月</td>

</tr>

<tr>

</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 = '';

} 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;

}

使用DateTime 类解决2038问题，这样不分32位与64位，代码如下：

复制代码代码如下:

<?php

/**

* 我的日历(DateTime版本)

* date_default_timezone_set date mktime

* @param int $year

* @param int $month

* @param string $timezone

* @author fc_lamp

* @blog: fc-lamp.blog.163.com

function myCalender($year = '', $month = '', $timezone = 'Asia/Shanghai')

{

date_default_timezone_set ( $timezone );

$year = abs ( intval ( $year ) );

$month = abs ( intval ( $month ) );

$nowDate = new DateTime();

if ($year <= 0)

{

$year = $nowDate->format( 'Y' );

}

if ($month <= 0 or $month > 12)

{

$month = $nowDate->format('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

</tr>

<td colspan="5">{$year}年{$month}月</td>

</tr>

<tr>

</tr>

HTML;

$currentDay = $nowDate->format('Y-m-j' );

//当月最后一天

$creatDate = new DateTime("$year-$nextMonth-0");

$lastday = $creatDate->format('j');

$creatDate = NULL;

//循环输出天数

$day = 1;

$line = '';

while ( $day <= $lastday )

{

$cday = $year . '-' . $month . '-' . $day;

//当前星期几

$creatDate = new DateTime("$year-$month-$day");

$nowWeek = $creatDate->format('N');

$creatDate = NULL;

if ($day == 1)

{

$line = '<tr align="center">';

$line .= str_repeat ( '<td></td>', $nowWeek - 1 );

}

if ($cday == $currentDay)

{

$style = '';

} 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;

}