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PHP 万年历实现代码_php技巧

May 17, 2016 am 09:08 AM

使用PHP实现万年历功能的要点:

•得到当前要处理的月份总共有多少天$days
•得到当前要处理的月份的一号是星期几$dayofweek
$days的作用:知道要处理的月份共有多少天,就可以通过循环输出天数了

$dayofweek的作用:只有知道每个月的1号是星期几,才能知道在输出天数之前需要输出多少空格(空白)

最终效果图如下:

PHP 万年历实现代码_php技巧

“万年历类”的代码如下:

复制代码 代码如下:

/**
* PHP万年历
* @author Fly 2012/10/16
*/
class Calendar{
protected $_table;//table表格
protected $_currentDate;//当前日期
protected $_year; //年
protected $_month; //月
protected $_days; //给定的月份应有的天数
protected $_dayofweek;//给定月份的 1号 是星期几
/**
* 构造函数
*/
public function __construct()
{
$this->_table="";
$this->_year = isset($_GET["y"])?$_GET["y"]:date("Y");
$this->_month = isset($_GET["m"])?$_GET["m"]:date("m");
if ($this->_month>12){//处理出现月份大于12的情况
$this->_month=1;
$this->_year++;
}
if ($this->_month$this->_month=12;
$this->_year--;
}
$this->_currentDate = $this->_year.'年'.$this->_month.'月份';//当前得到的日期信息
$this->_days = date("t",mktime(0,0,0,$this->_month,1,$this->_year));//得到给定的月份应有的天数
$this->_dayofweek = date("w",mktime(0,0,0,$this->_month,1,$this->_year));//得到给定的月份的 1号 是星期几
}
/**
* 输出标题和表头信息
*/
protected function _showTitle()
{
$this->_table="";
$this->_table.="";
$this->_table .="";
$this->_table .="";
$this->_table .="";
$this->_table .="";
$this->_table .="";
$this->_table .="";
$this->_table .="";
$this->_table.="";
}
/**
* 输出日期信息
* 根据当前日期输出日期信息
*/
protected function _showDate()
{
$nums=$this->_dayofweek+1;
for ($i=1;$i_dayofweek;$i++){//输出1号之前的空白日期
$this->_table.="";
}
for ($i=1;$i_days;$i++){//输出天数信息
if ($nums%7==0){//换行处理:7个一行
$this->_table.="";
}else{
$this->_table.="";
}
$nums++;
}
$this->_table.="
".$this->_currentDate."
星期日星期一星期二星期三星期四星期五星期六
 $i
$i
";
$this->_table.="

上一月   ";
$this->_table.="下一月

";
}
/**
* 输出日历
*/
public function showCalendar()
{
$this->_showTitle();
$this->_showDate();
echo $this->_table;
}
}
$calc=new Calendar();
$calc->showCalendar();

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