php写的一个精确到天的年龄计算函数

2. /**
3. * PHP 年龄计算函数
4. *
5. * 参数支持数组传参和标准的 Mysql date 类型传参
6. * params sample
7. * -----------------
8. $birthArr = array(
9. 'year' => '2000',
10. 'month' => '11',
11. 'day' => '3'
12. );
13. $birthStr = '2000-11-03';
14. * ------------------
15. * );
16. * @author
17. * @copyright (c) 2011,2012 Just Use It!
18. * @link IT不倒翁 http://yungbo.com http://bbs.it-home.org
19. * @param string|array $birthday
20. * @return number $age
21. */
22. function getAge($birthday) {
23. $age = 0;
24. $year = $month = $day = 0;
25. if (is_array($birthday)) {
26. extract($birthday);
27. } else {
28. if (strpos($birthday, '-') !== false) {
29. list($year, $month, $day) = explode('-', $birthday);
30. $day = substr($day, 0, 2); //get the first two chars in case of '2000-11-03 12:12:00'
31. }
32. }
33. $age = date('Y') - $year;
34. if (date('m') return $age;
35. }
36. ?>

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