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:
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
|
/**
* 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:
31
希望本文所述对大家PHP程序设计有所帮助。
原文链接:https://www.cnblogs.com/gyfluck/p/8521197.html