20191107万年历

<?php    
$today=time();
//获取传过来的‘年’ 不然获取当年的‘年’
$year=isset($_GET['year'])?$_GET['year']:date("Y",$today);
//获取传过来的‘月’ 不然获取当年的‘月’
$month=isset($_GET['month'])?$_GET['month']:date("m",$today);

//限制月份范围
$month=$month>12?12:$month;
$month=$month<1?1:$month;

//年月的加减并回传
echo     "<a href='?year=".($year-1)."&month=".$month."'><<</a> ".
$year."年 <a href='?year=".($year+1)."&month=".$month."'>>></a><br />";
echo "<a href='?year=".$year."&month=".($month-1)."'><<</a> ".$month."月 <a href='?year=".$year."&month=".($month+1)."'>>></a>";
$firstday=strtotime($year."-".$month."-1");

//获取天数
$n=date("t",$firstday);

//获取星期几
$wd=date("w",$firstday);


?>
<!--打印表格-->
<table cellspacing=0 border=1 cellpadding=0 width=500>
<tr align=center>
<th>日</th><th>一</th><th>二</th><th>三</th><th>四</th><th>五</th><th>六</th>
</tr><tr align=center>
<?php
  $cnt=1;
  $darr=getdate($today);
 // print_r($darr);
 for($i=1-$wd;$i<=$n;$i++){
     //如果当前年月日等于当前时间 改变样式为‘红色’
     if($darr['year']==$year && $darr['mon']==$month && $darr['mday']==$i){
          echo "<td><font color=red>".($i<=0?"":$i)."</font></td>";
     }else{
          echo "<td>".($i<=0?"":$i)."</td>";
     }
    
     if($cnt%7==0)echo "</tr><tr align=center>";
     $cnt++;
     
 }

?>
</table>

万年历