站长图库向大家介绍了常用函数,根据生日计算年龄,功能示例等相关知识,希望对您有所帮助
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
/** * 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(empty($birth_year) || empty($birth_month) || empty($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：
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