PHP 年龄计算函数(精确到天)

复制代码 代码如下:

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') < $month || (date('m') == $month && date('d') < $day)) $age--;
return $age;
}