PHP常用函数之根据生日计算年龄功能示例
这篇文章主要介绍了PHP常用函数之根据生日计算年龄功能,结合实例形式分析了php日期相关转换与计算操作技巧,需要的朋友可以参考下。
本文实例讲述了PHP常用函数之根据生日计算年龄功能,分享给大家供大家参考,具体如下:
- /**
 - * 根据出生年月日计算出年龄
 - * @param $birth_year
 - * @param $birth_month
 - * @param $birth_day
 - * @return int
 - */
 - function getAgeByBirth($birth_year,$birth_month,$birth_day){
 - if(emptyempty($birth_year) || emptyempty($birth_month) || emptyempty($birth_day)){
 - return 0;
 - }
 - $current_year = date('Y',time());
 - $current_month = date('m',time());
 - $current_day = date('d',time());
 - if($birth_year >= $current_year){
 - return 0;
 - }
 - $age = $current_year - $birth_year - 1;
 - if($current_month>$birth_month){
 - return $age+1;
 - }else if($current_month == $birth_month && $current_day>=$birth_day){
 - return $age+1;
 - }else{
 - return $age;
 - }
 - }
 - //测试:
 - echo getAgeByBirth('1988','8','8');
 
运行结果:31