两个php日期控制类实例

<?php
class Calendar
{
?var $month;
?var $year;
?
??? function __construct($year,$month)
??? {
???? $this->year=$year;
? $this->month=$month;
?}
?
?function endday()
?{
? $daydate=date("d",mktime(0,$this->month,35,$this->year));
? $endday=35-$daydate;
? return $endday;
?}
?
?function oneday_week()
?{
? $oneday_week=date("w",1,$this->year));
? return $oneday_week;
?}
?
?function title_link()
?{
? if(!isset($this->month) && !isset($this->year))
? {
?? $this->year? = date("Y");
?? $this->month = date("m");
??????? }
??
? $lastmonth=$this->month-1;
? $nextmonth=$this->month+1;
? $lastyear=$this->year;
? $nextyear=$this->year;
?
??????? if($this->month <= 1)
??????? {
???????? $lastmonth=12;
?? $nextmonth=$this->month+1;
?? $lastyear=$this->year-1;
?? $nextyear=$this->year;
? }
??????? elseif ($this->month >= 12)?
??????? {
???????? $lastmonth=$this->month-1;
???????? $nextmonth=1;
?? $lastyear=$this->year;
?? $nextyear=$this->year+1;
??????? }
?
??????? $str ="<td colspan='2'><div align='center'><a href=$PHP_SELF?year=".$lastyear."&month=".$lastmonth."&><<<</a></div></td>";
? $str.="<td colspan='3'><div align='center'>".$this->year."--".$this->month."</div></td>";
? $str.="<td colspan='2'><div align='center'><a href=$PHP_SELF?year=".$nextyear."&month=".$nextmonth."&>>>></a></div></td>";
? return $str;
?}
?
?function Show_Calendar()
?{
??????? echo "<table width='181' border=5><tr class='tr.title'>".$this->title_link()."</tr><tr>";
??????? $weekarray=array("日","一","二","三","四","五","六");
????????
??????? for($k=0;$k<=6;$k++)
??????? {
???????? echo "<td><div align='center'>".$weekarray[$k]."</div></td>";
??????? }
??????? echo "</tr>";
????????
??????? for($i=0;$i<=5;$i++)
??????? {
???????? echo "<tr>";
???????? for($j=1;$j<=7;$j++)
???????? {
???? $math=( $j - $this->oneday_week() ) + 7 * $i;
????
????????? echo "<td><div align='center'>";
????
????????? if($math <= $this->endday() and $math>=1)
???? {
?? echo $math;
???? }
????
???????? echo "</div></td>";
???????? }????
???????? echo "</tr>";?????
??????? }
? echo "</table>";
?}
}
$calendar=new Calendar($_GET['year'],$_GET['month']);
$calendar->month=$_GET['month'];
$calendar->year=$_GET['year'];
$calendar->Show_Calendar();
?>

<?php
header("content-type:text/html;charset=utf-8");
?>
<meta http-equiv="content-type" content="text/html;charset=utf-8">
?
<link href="statics/css/zhaoshang.css" rel="stylesheet" type="text/css">
<div class="rili">
<?php
if(!emptyempty($_GET)){
??? $year = isset($_GET['year'])?$_GET['year']:date('y');
??? $month = isset($_GET['month'])?$_GET['month']:date('m');
?$day = isset($_GET['day'])?$_GET['day']:date('d');
}
if(emptyempty($year)){
??? $year = date('Y');
}
if(emptyempty($month)){
??? $month = date('m');
}
?
if(emptyempty($month)){
??? $days = date('d');
}
?
$start_weekday = date('w',$month,$year));
//echo $start_weekday;
$days = date('t',$year));
//echo $days;
$week = array('日','一','二','三','四','五','六');
$i = 0;
$k = 1;
$j = 0;
echo '<table >';
echo '<tr><td colspan = 7 style ="text-align:center; width:250px; background:#d5e5f6; border-bottom:1px solid #333366;">'.$year.'年'.$month.'月'.'</td></tr>';
echo '<tr>';
for($i = 0;$i < 7;$i++){
??? echo '<td>'.$week[$i].'</td>';
}
echo '</tr>';
echo '<tr>';
for($j = 0;$j < $start_weekday;$j++){
??? echo '<td style="color:#f1f8fc;">'.$j.'</td>';
}
while($k <= $days){
??? if($k == $day){
??????? echo '<td style="color:red"><a href="?year='.$year.'&month='.$month.'&day='.$k.'"><span style="color:red">'.$k.'</span></a></td>';
??? }else{
??????? echo '<td><a href="?year='.$year.'&month='.$month.'&day='.$k.'">'.$k.'</a></td>';
??? }
??? if(($j+1) % 7 == 0){
??????? echo '</tr><tr>';
??? }
??? $j++;
??? $k++;
}
while($j % 7 != 0){
??? echo '<td style="color:#f1f8fc;">'.$j.'</td>';
??? $j++;
}
echo '</tr>';
?
echo '<tr style="background:#d5e5f6;">';
echo "<td><a href=?".lastYear($year,$month).">".'<<'.'</a></td>';
echo "<td><a href=?".lastMonth($year,$month).">".'<'.'</a></td>';
echo '<td colspan = 3 style="width:105px;" >';
echo '<form name = "myform" method = "GET">';
echo '<select name = year? class="year">';
for($start_year = 1970;$start_year<2039;$start_year++){
?$selected='';
?if( $year== $start_year ) { $selected='selected'; }
?echo '<option value ='. $start_year.' '.$selected.'>'.$start_year.'</option>'." nt";
}
echo '</select>';
echo '<select name = month class="month">';
for($start_month = 1;$start_month<=12;$start_month++){
?$selected='';
?if( $month== $start_month ) { $selected='selected';}
?echo '<option value = '.$start_month.' '.$selected.'>'.$start_month.'</option>'." nt";
}
echo '</select>';
/*echo '月';*/
/*echo '<input type = "submit" name = "search" value = "查询">';*/
echo '</form>';
echo '</td>';
echo "<td><a href=?".nextYear($year,$month).">".'>>'.'</a></td>';
echo "<td><a href=?".nextMonth($year,$month).">".'>'.'</a></td>';
echo '</tr>';
echo '</table>';
?
function lastYear($year,$month){
?$year = $year-1;
?return "year=$year&month=$month";
}
function lastMonth($year,$month){
?if($month == 1){
? $year = $year -1;
? $month = 12;
?}else{
? $month--;
?}
?return "year=$year&month=$month";
}
function nextYear($year,$month){
?$year = $year+1;
?return "year=$year&month=$month";
}
function nextMonth($year,$month){
?if($month == 12){
? $year = $year +1;
? $month = 1;
?}else {
? $month++;
?}
?return "year=$year&month=$month";
}
?
?>
</div>