<scripttype="text/javascript"src="../../03-jQuery/js/jquery-1.10.2/jquery.js"></script>
<?php
header("Content-type:text/html;charset=utf-8");
/**
* Created by PhpStorm.
* User: lanouhn
* Date: 2017/8/24
* Time: 10:10
*/
//获取当前的年,月
$year=isset($_GET['year'])&& !empty($_GET['year'])?$_GET['year']:date('Y');
$month=isset($_GET['month'])&& !empty($_GET['month'])?$_GET['month']:date('m');
//if (!is_numeric($year) || !is_numeric($month)){
// echo "<script>alert('请输入数字')</script>";
// $year = date('Y');
// $month = date('m');
//}
//判断下一月
if($month==12){
//12
$next_month=1;
$next_year=$year+1;
}else{
//1-11
$next_month=$month+1;
$next_year=$year;
}

//判断上一月
if($month==1){
//1
$last_month=12;
$last_year=$year-1;
}else{
//2-12
$last_month=$month-1;
$last_year=$year;
}

//获取当月一共多少天
$days=date('t');

//获取本月一号对应的是星期几 ,也就是说前面要有几个空td
$weeks=date('w',mktime(0,0,0,$month,1,$year));

//获取当前月份的第几天
$day1=date('d');

//获取上个月的总天数
//$last_month = $month - 1;
$stamp=mktime(0,0,0,$last_month,1,$year);
$last_days=date('t',$stamp);

//判断空几格
if($weeks>0){
$l=$weeks-1;
}else{
$l=6;
}

$temp=$l;
?>

<style>
.last_month{
color:#A9A9A9;
}
td{
border:1px solid#646464;
}
td:hover{
border:1px solid#ffd139;
}
#btn,.btn{
border-radius:5px;
background-color:#ffd139;
border-color:#f3e89b;
}
caption a{
text-decoration-line:none;
color:#363636;
font-weight:bold;
}
caption a:hover{
color:#6e6e6e;
}
#year,#month{
border-radius:3px;
background-color:rgba(255,244,164,0.61);
border-color:#f3e89b;
}
</style>

<!--表单-->
<formaction="10-Almanac.php"id="form1">
<inputtype="text"name="year"placeholder="请输入年"value="<?phpecho$year?>"id="year">
<inputtype="text"name="month"placeholder="请输入月"value="<?phpecho$month?>"id="month">
<inputtype="button"value="提交"id="btn">
</form>

<tablewidth="500"border="1"cellspacing="0"cellpadding="0"style="text-align:center ">
<captionstyle="text-align:left;"><?phpecho$year;?>年<?phpecho$month;?>月<ahref="10-Almanac.php"style="float:right">刷新</a></caption>
<trbgcolor="#bdb76b">
<th>一</th>
<th>二</th>
<th>三</th>
<th>四</th>
<th>五</th>
<th>六</th>
<th>七</th>
</tr>
<tr>
<!--{里面加空格?>表示1号对应的星期几 前面要空格-->
<?php

//上个月天数
for($j=$last_days-$l+1;$j<=$last_days;$j++){ ?>
<tdclass="last_month"><?phpecho$j;?></td>
<?php } ?>

<!--for计算当前月份天数-->
<?phpfor($i=1;$i<=$days;$i++){

//添加背景颜色
if($i==$day1){
$color="pink";
}else{
$color="#999";
}?>

<!--判断换行-->
<?php$l++;?>
<?phpif($l%7==0){ ?>
<tdbgcolor="<?phpecho$color?>"><?phpecho$i;?></td>
</tr>
<tr>
<?php }else{ ?>
<tdbgcolor="<?phpecho$color?>"><?phpecho$i;?></td>
<?php } ?>
<?php } ?>

<!--获取下个月剩余天数-->
<?php
if($temp+$days<=35){
$total=35;
}else{
$total=42;
}
?>
<?phpfor($z=1;$z<=$total-$l;$z++){
?>
<?phpif($l%7==0){?>
<tdclass="last_month"><?phpecho$z;?></td>
</tr>
<tr>
<?php }else{?>
<tdclass="last_month"><?phpecho$z;?></td>
<?php }}?>
</tr>
<!--上一页 下一页-->
<tr>
<tdcolspan="7">
<ahref="10-Almanac.php?month=<?phpecho$last_month?>&year=<?phpecho$last_year?>"><buttonclass="btn">上一月</button></a>
                        
<ahref="10-Almanac.php?month=<?phpecho$next_month?>&year=<?phpecho$next_year?>"><buttonclass="btn">下一月</button></a>
</td>
</tr>
</table>

<script>
$('#btn').click(function(){
$('#form1').submit();
varyear=$('#year').val();
varmonth=$('#month').val();
year=Number(year);
month=Number(month);
if(isNaN(year)||year==0){
alert('请输入正确年份!');
return false;
}
if(isNaN(month)||month==0){
alert('请输入正确月份!');
return false;
}
})
</script>