PHPのカレンダー

/**
 * Created by PhpStorm.
 * User: zzu
 * Date: 13-5-8
 * Time:   3:05
 */
//  
//
//echo $_GET['year'];
$year=isset($_GET['year'])?$_GET['year']:date('y');
//    
$month=isset($_GET['month'])?$_GET['month']:date('m');
//  
$day=isset($_GET['$day'])?$_GET['$day']:date('d');
echo "{$year} {$month} {$day} ";
echo '
';
//1、     1     
$startweek=date('w',mktime(0,0,0,$month,1,$year));
//2、          t:      
$days=date('t',mktime(0,0,0,$month,$year));
echo "{$year} {$month} {$day}  1    {$startweek}     {$days} ";

//      
echo ';
echo'';// echo'';
echo'';
echo'';
echo'';
echo'';
echo'';
echo'';
echo'';

//    echo'';
for($i=0;$i<$startweek;$i++){
    echo'';
}
//1——31   for($j=1;$j<=$days;$j++){
    $i++;
    echo"";
    if($i%7==0){
        echo'';
    }
}
//     while($i%7!==0){
    echo'';
    $i++;
}
echo'';
echo'
 

 
   
 
   
 
   
 
   
 
   
 
   
 
   
 
  
  
&nbsp
 
{$j}
 

 
&nbsp
  
  
';