PHP自动生成月历代码

/*   Function Written by Nelson Neoh @3/2004.   For those who wants to utilize this code, please do not remove this remark.   If you have done any enhancement to this code, please post the copy at http://www.dev-club.com PHP board. Thank you.  Function usage: calendar(Month,Year)  */  function calendar($MM,$YYYY){  if($MM=="") $MM = date("m");  if($YYYY=="") $YYYY = date("Y");  if(checkdate($MM,1,$YYYY)){  $stringDate = strftime("%d %b %Y",mktime (0,0,0,$MM,1,$YYYY));  $days = strftime("%d",mktime (0,0,0,$MM+1,0,$YYYY));  $firstDay = strftime("%w",mktime (0,0,0,$MM,1,$YYYY));  $lastDay = strftime("%w",mktime (0,0,0,$MM,$days,$YYYY));  $printDays = $days;  $preMonth = strftime("%m",mktime (0,0,0,$MM-1,1,$YYYY));  $preYear = strftime("%Y",mktime (0,0,0,$MM-1,1,$YYYY));  $nextMonth = strftime("%m",mktime (0,0,0,$MM+1,1,$YYYY));  $nextYear = strftime("%Y",mktime (0,0,0,$MM+1,1,$YYYY));  print("");  print("");  print("");  print("");  print("");  print("");  $currentDays = 1;  for($a=1;$a<=5;$a++){  print("");  $diffDays = $firstDay-$lastDay;  if($firstDay>$lastDay && $currentDays ==1 && ($diffDays1)){  for($x=$lastDay;$x>=0;$x--){  $printDays = $days-$x;  print("");  }  for($z=1;$z<$firstDay-$lastDay;$z++){  print("");  }  for($y=$firstDay;$y<7;$y++){  print("");  $currentDays++;  }  } elseif($firstDay!=0 && $currentDays==1){  for($z=1;$z<=$firstDay;$z++){  print("");  }  for($y=$firstDay;$y<7;$y++){  print("");  $currentDays++;  }  } else {  for($u=1;$u<=7 && $currentDays<=$days;$u++){  print("");  $currentDays++;  }  }  print("");  }  print("
P
".strftime("%b %Y",mktime (0,0,0,$MM,1,$YYYY))."
N
Sun
Mon
Tue
Wed
Thu
Fri
Sat
$printDays
 
$currentDays
 
$currentDays
$currentDays
");  }  }