PHP calendar code sharing simple and practical PHP calendar code

header("content-type:text/html;charset=utf-8");
?>


/**
* Simple and practical php calendar code
* edit: bbs.it-home.org
*/
if(!emptyempty($_GET)){
    $year = $_GET['year'];
    $month = $_GET['month'];
}
if(emptyempty($year)){
    $year = date('Y');
}
if(emptyempty($month)){
    $month = date('m');
}
$start_weekday = date('w',mktime(0,0,0,$month,1,$year));
//echo $start_weekday;
$days = date('t',mktime(0,0,0,$month,1,$year));
//echo $days;
$week = array('星期日','星期一','星期二','星期三','星期四','星期五','星期六');
$i = 0;
$k = 1;
$j = 0;
echo '';  echo '';  echo '';  for($i = 0;$i < 7;$i++){      echo '';  }  echo '';  echo '';  for($j = 0;$j < $start_weekday;$j++){      echo '';  }  while($k <= $days){      if($k == date('d')){          echo '';      }else{          echo '';      }      if(($j+1) % 7 == 0){          echo '';      }      $j++;      $k++;  }  while($j % 7 != 0){      echo '';      $j++;  }  echo '';    echo '';  echo "';  echo "';  echo '';  echo "';  echo "';  echo '';  echo '
'.$year.'年'.$month.'月'.'

'.$week[$i].'



'.$j.'

'.$k.'

'.$k.'








'.$j.'





".'<<'.'
".'<'.'
';  
echo '';  
echo '';  
for($start_year = 1970;$start_year<2039;$start_year++){   echo ''.$start_year.'';  
}  
echo ''.'年';  
echo '';  
for($start_month = 1;$start_month<=12;$start_month++){   echo ''.$start_month.'';  
}  
echo '';  
echo '月';  
echo '';  
echo '';  
echo '
".'>>'.'
".'>'.'

';

function lastYear($year,$month){
 $year = $year-1;
 return "year=$year&month=$month";
}
function lastMonth($year,$month){
 if($month == 1){
  $year = $year -1;
  $month = 12;
 }else{
  $month--;
 }
 return "year=$year&month=$month";
}
function nextYear($year,$month){
 $year = $year+1;
 return "year=$year&month=$month";
}
function nextMonth($year,$month){
 if($month == 12){
  $year = $year +1;
  $month = 1;
 }else {
  $month++;
 }
 return "year=$year&month=$month";
}
?>

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