php根据出生日期计算年龄 生肖 星座程序

function getAge($birthday) {
$age = 0;
$year = $month = $day = 0;

if (is_array($birthday)) {
extract($birthday);
} else {
if (strpos($birthday, '-') !== false) {
list($year, $month, $day) = explode('-', $birthday);
$day = substr($day, 0, 2); //get the first two chars in case of '2000-11-03 12:12:00'
}
}

$age = date('Y') - $year;
if (date('m') return $age;
}

function age($birth) {
$age = array();
//$now = date('Ymd');
$now = "20110228";
//分解当前日期为年月日
$nowyear = (int) ($now / 10000);
$nowmonth = (int) (($now % 10000) / 100);
$nowday = $now % 100;


//分解出生日期为年月日
$birthyear = (int) ($birth / 10000);
$birthmonth = (int) (($birth % 10000) / 100);
$birthday = $birth % 100;

$year = $nowyear - $birthyear;
if ($birthmonth>$nowmonth){
$year--;
}else if($birthmonth==$nowmonth){
if($birthday==29&&$birthmonth=2){
/* if($nowyear>3200||($nowyear%3200==0&&$nowyear%172800==0)){
if($birthday>$nowday){
$year--;
}
}else if($nowyear==3200){
if (($birthday>$nowday)&&$nowday!=28){
$year--;
}
}else */
if ($nowyear%400==0||(($nowyear%4==0)&&($nowyear%100!=0))){
if($birthday>$nowday){
$year--;
}
}
}
}

return $year;




}

[font=Arial]

[font=Arial]/**

* 根据生日中的月份和日期来计算所属星座

*

* @param int $birth_month

* @param int $birth_date

* @return string

*/

function get_constellation($birth_month,$birth_date)

{

//判断的时候，为避免出现1和true的疑惑，或是判断语句始终为真的问题，这里统一处理成字符串形式

$birth_month = strval($birth_month);

$constellation_name = array(

'水瓶座','双鱼座','白羊座','金牛座','双子座','巨蟹座',

'狮子座','处女座','天秤座','天蝎座)','射手座','摩羯座'

);

if ($birth_date

{

if ('1' !== $birth_month)

{

$constellation = $constellation_name[$birth_month-2];

}

else

{

$constellation = $constellation_name[11];

}

}

else

{

$constellation = $constellation_name[$birth_month-1];

}

return $constellation;

}[/font]

[font=Arial]/**

* 根据生日中的年份来计算所属生肖

*

* @param int $birth_year

* @return string

*/

function get_animal($birth_year)

{

//1900年是子鼠年

$animal = array(

'子鼠','丑牛','寅虎','卯兔','辰龙','巳蛇',

'午马','未羊','申猴','酉鸡','戌狗','亥猪'

);

$my_animal = ($birth_year-1900)%12;

return $animal[$my_animal];

}[/font]