php實(shí)現(xiàn)根據(jù)身份證獲取精準(zhǔn)年齡

function getAge($id){

# 1.從身份證中獲取出生日期
$id = $id;//身份證
$birth_Date = strtotime(substr($id, 6, 8));//截取日期并轉(zhuǎn)為時(shí)間戳

# 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[當(dāng)前日期]
$current_Y = date('Y');//yyyy
$current_M = date('m');//mm
$current_D = date('d');//dd

# 4.計(jì)算年齡()
$age = $current_Y - $Year;//今年減去生日年
if($Month > $current_M || $Month == $current_M  $Day > $current_D){//深層判斷(日)
 $age--;//如果出生月大于當(dāng)前月或出生月等于當(dāng)前月但出生日大于當(dāng)前日則減一歲
}
# 返回
return $age;

}

# 參數(shù)必須為 String 型
echo getAge('130322xxxxxxxxxx14');
// xx

/*
* 根據(jù)身份證號(hào)碼獲取年齡
* inupt $code = 完整的身份證號(hào)
* return $age : 年齡
*/
function ageVerification($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; 
}