<?php
//初始化年份 
if($_GET["year"]==""){
$year=date("Y");
}else{
$year=$_GET["year"];
}

//初始化月份 
if($_GET["month"]==""){
$month=date("n");
}else{
$month=$_GET["month"];
}

$wd_ar=array("日","一","二","三","四","五","六"); //星期数组 
$wd=date("w",mktime(0,0,0,$month,1,$year)); //当月第一天是星期几

//年链接 
$y_lnk1=$year<=1970?$year=1970:$year-1; 
$y_lnk2=$year>=2037?$year=2037:$year+1;

//月链接 
$m_lnk1=$month<=1?$month=1:$month-1; 
$m_lnk2=$month>=12?$month=12:$month+1;

echo <<< EOT

<table border="1" cellpadding="0" cellspacing="0" bordercolor="#00FF00" width="600" bgcolor="#eeeeee"> <tr align="center" bgcolor="#cccccc">
<td colspan="4" height="35"><a href="$php_self?year=$y_lnk1&month=$month"><</a> $year 年 <a href="$php_self?year=$y_lnk2&month=$month">></a></td> 
<td colspan="3" height="35"><a href="$php_self?year=$year&month=$m_lnk1"><</a> $month 月 <a href="$php_self?year=$year&month=$m_lnk2">></a></td> </tr> <tr align="center"> 
EOT;
for($i=0;$i<7;$i++) { 
print "<td height=35>$wd_ar[$i]</td> "; 
} 
print "</tr> ";

$tnum=$wd+date("t",mktime(0,0,0,$month,1,$year)); 
for($i=0;$i<$tnum;$i++) { 
$date=$i+1; 
if($i%7==0) print '<tr align="center">'; 
print '<td height="75">'; 
if($i>=$wd) print $date-$wd; 
print "</td> "; 
if($i%7==6) print "</tr> "; 
} 
if($i%7<6 && $i%7>0) print '<td colspan="".(7-$i%7).""></td> </tr> '; 
if($i%7==6) print "<td></td> </tr> ";

print '</table>';

?>