php Calender(日历）代码

  1 <?php
  2 /**
  3  * 
  4  * 我的日历
  5  * date_default_timezone_set date mktime
  6  * @param int $year
  7  * @param int $month
  8  * @param string $timezone
  9  * @author fc_lamp
 10  * @blog: http://www.cnblogs.com/roucheng/
 11  */
 12 function myCalender($year = '', $month = '', $timezone = 'Asia/Shanghai')
 13 {
 14     
 15     date_default_timezone_set ( $timezone );
 16     $year = abs ( intval ( $year ) );
 17     $month = abs ( intval ( $month ) );
 18     
 19     //是否是32位机
 20     if (is32())
 21     {
 22         if ($year < 1970 or $year >= 2038)
 23         {
 24             $year = date ( 'Y' );
 25         }
 26     } else
 27     {
 28         if ($year <= 0)
 29         {
 30             $year = date ( 'Y' );
 31         }
 32     
 33     }
 34     
 35     if ($month <= 0 or $month > 12)
 36     {
 37         $month = date ( 'm' );
 38     }
 39     
 40     //上一年
 41     $pretYear = $year - 1;
 42     //上一月
 43     $mpYear = $year;
 44     $preMonth = $month - 1;
 45     if ($preMonth <= 0)
 46     {
 47         $preMonth = 1;
 48         $mpYear = $pretYear;
 49     }
 50     
 51     //下一年
 52     $nextYear = $year + 1;
 53     //下一月
 54     $mnYear = $year;
 55     $nextMonth = $month + 1;
 56     if ($nextMonth > 12)
 57     {
 58         $nextMonth = 1;
 59         $mnYear = $nextYear;
 60     }
 61     
 62     //日历头
 63     $html = <<<HTML
 64 <table width="500" border="1">
 65   <tr align="center">
 66     <td><a href="?y=$pretYear">上一年</a></td>
 67     <td><a href="?y=$mpYear&m=$preMonth">上一月</a></td>
 68      <td><a href="?">回到今天</a></td>
 69     <td><a href="?y=$mnYear&m=$nextMonth">下一月</a></td>
 70     <td><a href="?y=$nextYear">下一年</a></td>
 71   </tr>
 72   <tr align="center">
 73     <td colspan="5">{$year}年{$month}月</td>
 74   </tr>
 75   <tr>
 76       <td colspan="5">
 77         <table width="100%" border="1">
 78             <tr align="center">
 79                 <td style="background-color:#DAF0DD;">星期一</td>
 80                 <td style="background-color:#DAF0DD;">星期二</td>
 81                 <td style="background-color:#DAF0DD;">星期三</td>
 82                 <td style="background-color:#DAF0DD;">星期四</td>
 83                 <td style="background-color:#DAF0DD;">星期五</td>
 84                 <td style="background-color:#F60;color:#fff;font-weight: bold;">星期六</td>
 85                 <td style="background-color:#F60;color:#fff;font-weight: bold;">星期天</td>
 86             </tr>
 87 HTML;
 88     
 89     $currentDay = date ( 'Y-m-j' );
 90     
 91     //当月最后一天
 92     $lastday = date ( 'j', mktime ( 0, 0, 0, $nextMonth, 0, $year ) );
 93     
 94     //循环输出天数
 95     $day = 1;
 96     $line = '';
 97     while ( $day <= $lastday )
 98     {
 99         $cday = $year . '-' . $month . '-' . $day;
100         
101         //当前星期几
102         $nowWeek = date ( 'N', mktime ( 0, 0, 0, $month, $day, $year ) );
103         
104         if ($day == 1)
105         {
106             $line = '<tr align="center">';
107             $line .= str_repeat ( '<td>&nbsp;</td>', $nowWeek - 1 );
108         }
109         
110         if ($cday == $currentDay)
111         {
112             $style = 'style="color:red;"';
113         } else
114         {
115             $style = '';
116         }
117         
118         $line .= "<td $style>$day</td>";
119         
120         //一周结束
121         if ($nowWeek == 7)
122         {
123             $line .= '</tr>';
124             $html .= $line;
125             $line = '<tr align="center">';
126         }
127         
128         //全月结束
129         if ($day == $lastday)
130         {
131             if ($nowWeek != 7)
132             {
133                 $line .= str_repeat ( '<td>&nbsp;</td>', 7 - $nowWeek );
134             }
135             $line .= '</tr>';
136             $html .= $line;
137             
138             break;
139         }
140         
141         $day ++;
142     }
143     
144     $html .= <<<HTML
145         </table>    
146     </td>
147   </tr>
148 </table>
149 HTML;
150     return $html;
151 }
152 
153 /**
154  * 
155  * 检测是否是32位机
156  * @author fc_lamp
157  * @blog: fc-lamp.blog.163.com
158  */
159 function is32()
160 {
161     $is32 = False;
162     if (strtotime ( '2039-10-10' ) === False)
163     {
164         $is32 = True;
165     }
166     return $is32;
167 }