php身份证获取精准年龄 php实现根据身份证获取精准年龄

function getAge($id){

# 1.从SFZ中获取出生日期
$id = $id;//SFZ
$birth_Date = strtotime(substr($id, 6, 8));//截取日期并转为时间戳

# 2.格式化[出生日期]
$Year = date('Y', $birth_Date);//yyyy
$Month = date('m', $birth_Date);//mm
$Day = date('d', $birth_Date);//dd

# 3.格式化[当前日期]
$current_Y = date('Y');//yyyy
$current_M = date('m');//mm
$current_D = date('d');//dd

# 4.计算年龄()
$age = $current_Y - $Year;//今年减去生日年
if($Month > $current_M || $Month == $current_M && $Day > $current_D){//深层判断(日)
 $age--;//如果出生月大于当前月或出生月等于当前月但出生日大于当前日则减一岁
}
# 返回
return $age;

}

# 参数必须为 String 型
echo getAge('130322xxxxxxxxxx14');
// xx

/*
* 根据SFZ号码获取年龄
* inupt $code = 完整的SFZ号
* return $age : 年龄
*/
function ageVerification($code){
 $age_time = strtotime(substr($code, 6, 8));
 if($age_time === false){
 return false;
 }
 list($y1,$m1,$d1) = explode("-",date("Y-m-d",$age_time)); 
 
 $now_time = strtotime("now");
 
 list($y2,$m2,$d2) = explode("-",date("Y-m-d",$now_time));
 $age = $y2 - $y1;
 if((int)($m2.$d2) < (int)($m1.$d1)){
 $age -= 1;
 }
 return $age; 
}