눌렀는데 12월까지만 달을 조정했는데 연도가 그대로네요.

Question

<style>

테이블{배경:#99ffcc;}

th{font-family:隶书;color:#0099ff;}

#tr1{배경:#00ccff;}

.td1{color:blue ;}

a{color:#ff9900;}

</style>

<?php

// error_reporting(E_ALL & ~E_NOTICE);

$mon = date("m");

$연도 = 날짜("Y");

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

echo $_GET['y'];

echo $year;

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

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

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

echo " <div align='center'><table border=0>";

echo "<h3><div>{$year}年{$mon}月</div></h3>";

echo "<tr>";

echo "<th class='td1'>日</th>";

echo "<th class=' td1'>一</th>";

echo "<th class='td1'>이</th>";

echo "<th class='td1'>三< ;/th>";

echo "<th class='td1'>4</th>";

echo "<th class='td1'>五</th>";

echo "<th class='td1'>六</th>";

echo "</tr>";

$d = 1;

while($d<=$day ){

echo "<tr>";

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

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

echo "<th><a href='#'>{$d}</a></th>";

$d++;

}else{

echo "<일> </th>";

}

}

echo "</tr>";

}

$prem = $nextm = $mon;

$prey = $nexty = $ 연도;

if ($mon<=1){

$prem = 12;

$prey--;

}else {

$prem--;

}

if ($mon>= 12){

$nextm = 1;

$nexty++;

}else {

$nextm++;

}

$prey = $연도 - 1;

$nexty = $연도 + 1;

echo "<tr>";

echo "<td colspan=7 align='center'>";

echo "<a href='index.php?y={$prey}'> <<</a>";

echo "{$year}年";

echo "<a href='index.php?y={$nexty}'>>>< ;/a>";

echo " ";

echo "<a href='index.php?m={$prem}'><</a>";

echo "{$ mon}월";

echo "<a href='index.php?m={$nextm}'>></a>";

echo "</td>";

echo "</tr>";

echo "</table></div>";