J'ai cliqué dessus. C'est faux, j'ai seulement ajusté le mois jusqu'en décembre, mais l'année reste toujours la même.

Question

<style>

table{background:#99ffcc;}

th{font-family:隶书;color:#0099ff;}

#tr1{background:#00ccff;}

.td1{color:blue ;}

a{color:#ff9900;}

</style>

<?php

// error_reporting(E_ALL & ~E_NOTICE);

$mon = date("m");

$année = date("Y");

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

echo $_GET['y'];

echo $year;

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

$day = date("t",mktime(0,0,0 ,$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'>二</th>";

echo "<th class='td1'>三< ;/th>";

echo "<th class='td1'>四</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 "<th> </th>";

}

}

echo "</tr>";

}

$prem = $nextm = $mon;

$prey = $nexty = $ année;

if ($mon<=1){

$prem = 12;

$prey--;

}else {

$prem--;

}

if ($mon>= 12){

$nextm = 1;

$nexty++;

}else {

$nextm++;

}

$prey = $année - 1;

$nexty = $année + 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}月";

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

echo "</td>";

echo "</tr>";

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