抽空写了个日历程序,只注重功能和实现的思路,所以代码和功能都比较简单,但是理解和扩展也比较容易。
show()函数用来显示日历,你可以修改show()函数,通过传值的方式来实现显示不同的年月。
<?php class Calendar{ public $weekarray = array('星期日','星期一','星期二','星期三','星期四','星期五','星期六'); public $firstDay = '';//当月第一天 public $firstNum = '';//返回当月第一天对应的星期数字 public $firstDayNum = '';//当月第一天对应的中文星期 /** * 指定日是星期几 * eg:$date='2014-07-21' */ public function getWeek($date){ $date = strtotime($date);//strtotime() 函数将任何英文文本的日期时间描述解析为 Unix 时间戳 $num = date('w',$date);//数字型的星期几,如: "0" (星期日) 至 "6" (星期六) return $num; } /** * 取得指定月有多少天 * eg:$month = '2014-07' */ public function getMonthNum($month){ $month = strtotime($month); return date('t',$month);//指定月份的天数 } /** * 显示日历 */ public function show(){ //取得当前日期 $year = date('Y'); $month = date('m'); $day = date('d'); echo '<table border="1" style="text-align:center;">'; echo '<tr><td colspan="7">'.$year.'-'.$month.'</td></tr>'; echo '<tr><th>星期日</th><th>星期一</th><th>星期二</th><th>星期三</th><th>星期四</th><th>星期五</th><th>星期六</th></tr>'; //取得当前月有多少天 $yearMonth = '$year."-".$month'; $monthNum = $this->getMonthNum($yearMonth); //取得当前月第一天是星期几 $this->firstDay = $year."-".$month."-01"; $this->firstNum = $this->getWeek($this->firstDay); $this->firstDayNum = $this->weekarray[$this->firstNum]; echo '<tr>'; for($i=1;$i<=$monthNum+($this->firstNum);$i++){ echo '<td>'; if($i >= $this->firstNum+1){ $a = $i-$this->firstNum; if($a == $day){ echo '<p style="background-color:blue;color:#fff;">'.$a.'</p>'; }else{ echo '<p>'.$a.'</p>'; } } echo '</td>'; if($i%7 == 0){//每输出7列就换一行 echo '</tr>'; } } echo '</table>'; } } $calendar = new Calendar(); $calendar->show();
效果图:
PHP date()函数的使用
这里有篇date()函数的详解:http://wenku.baidu.com/link?url=OPDGzaCMWgjDE0ya8QlDbLIXX0c11ohUjsoLyRm-cYp7lz-O_7H4XBILv8JfomhbnSxXSW0FhqxYBK0_gn8Nr77XMWp-_st7v8AYecbNZjG

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