我敲上了 不对啊 只调月份调到12月以后年份还是不变的

Question

<样式>

表格{背景:#99ffcc;}

th{font-family:隶书;颜色:#0099ff;}

#tr1{背景:#00ccff;}

.td1{颜色:蓝色;}

a{颜色:#ff9900;}

<?php

// error_reporting(E_ALL & ~E_NOTICE);

$mon = date("m");

$year = date("Y ");

$year = isset($_GET['y'])?$_GET['y']:$year;

echo $_GET['y'];

echo $year;

$mon = isset($_GET['m'])?$_GET['m']:$mon;

$day = 日期("t",mktime(0,0,0,$mon,1,$year));

$w = 日期("w",mktime(0,0,0,$mon,1) ,$year));

##echo "<表格边框=0>" ;

echo "

{$year}年{$mon}月

;</h3>";

echo "";

echo "<第 class='td1'>日";

echo "<第一个类='td1'>一";

echo "<第一个类='td1'>二";

echo "<第class='td1'>三";

echo "<第class='td1'>四" ";

echo "<第类='td1'>五";

echo "<第类='td1'>六";

echo "";

$d = 1;

while ($d<=$day){

echo "";

for ($i=1;$i<=7;$i++){

if(($d<=$day) && ($w<$i|| $d!=1)){

echo "{$d}";

$d++;

}else{

echo "; </th>";

}

}

echo "</tr>";

}

$prem = $nextm = $mon;

$prey = $nexty = $year;

if ($mon<=1){

$prem = 12;

$prey--;

}else {

$prem--;

}

if ($mon>=12){

$nextm = 1;

$nexty++;

}else {

$nextm++;

}

$prey = $year - 1;

$nexty = $year + 1;

echo "";

echo "";

echo "< <";

echo "{$year}年";

echo " ;>></a>";

echo " ";

echo "< ;</a>";

echo "{$mon}月";

echo "; ></a>";

echo "</td>";

echo "</tr>";

echo "