$weekArr = array('Sun','Mon','Tue','Wed','Thu','Fri','Sat');

//获取空格：

//echo date("D",strtotime("2012-02-07"));

function getSpace($month,$year=''){

global $weekArr;

if(!$year){

$year = date("Y");

}

$firstDay = date("D",strtotime($year."-".$month."-01"));

$weekArrNew = array_flip($weekArr);

$space = $weekArrNew[$firstDay];

return $space;

}

//获取当月有多少天：

function getMonthDays($month,$year=''){

if(!$year){

$year = date("Y");

}

for($i=28;$i<=32;$i++){

if(!checkdate($month,$i,$year)){

return $i-1;

break;

}

}

}

//打印日历：

function printRili($month,$year=''){

global $weekArr;

if(!$year){

$year = date("Y");

}

$space = getSpace($month,$year);

for($i=1;$i<=$space;$i++){

$weekArr[] = ' ';

}

$monthDays =  getMonthDays($month,$year);

for($i=1;$i<=$monthDays;$i++){

$weekArr[] = $i;

}

//print_r($weekArr);

$returnStr = '

foreach($weekArr as $key=>$val){

if((($key+1) % 7 == 0) && $key!=0){

$returnStr .= '

'.$val.'';

}else{

$returnStr.='

'.$val.'';

}

}

$returnStr .= '

';

return $returnStr;

}

//打印2012年3月份的日历:

echo printRili(3);

?>

td{

text-align:center;

}

.firststr{

background:orange;

font-weight:bold;

}

.strnum{

background:gray;

color:white;

}