阅读量: 85
<?php
/**
* Created by Liang
* Email: 1144828910@qq.com
* User: joila
* Date: 2020/7/20
* Time: 上午10:52
*/
namespace FilterData;
/**
* 筛选身份证号码
* Class FilterIdCard
* @package FilterData
*/
class FilterIdCard
{
/**
* 调用方法
*
* @param string $IdCard
*
* @return bool
*/
public static function MethodValidationFilterIdCard(string $IdCard) {
if (strlen($IdCard) == 18) {
return self::MethodIdCardChecksum18($IdCard);
} elseif (( strlen($IdCard) == 15 )) {
$IdCard = self::MethodIdCard15to18($IdCard);
return self::MethodIdCardChecksum18($IdCard);
} else {
return false;
}
}
/**
* 计算身份证校验码,根据国家标准GB 11643-1999
*
* @param string $IdCardBase
*
* @return bool|mixed
*/
protected static function MethodIdCardVerifyNumber(string $IdCardBase) {
if (strlen($IdCardBase) != 17) {
return false;
}
//加权因子
$factor = [7, 9, 10, 5, 8, 4, 2, 1, 6, 3, 7, 9, 10, 5, 8, 4, 2];
//校验码对应值
$verify_number_list = ['1', '0', 'X', '9', '8', '7', '6', '5', '4', '3', '2'];
$checksum = 0;
for ($i = 0; $i < strlen($IdCardBase); $i++) {
$checksum += substr($IdCardBase, $i, 1) * $factor[$i];
}
$mod = $checksum % 11;
return $verify_number_list[$mod];
}
/**
* 将15位身份证升级到18位
*
* @param string $IdCard
*
* @return bool|string
*/
protected static function MethodIdCard15to18(string $IdCard) {
if (strlen($IdCard) != 15) {
return false;
} else {
// 如果身份证顺序码是996 997 998 999,这些是为百岁以上老人的特殊编码
if (array_search(substr($IdCard, 12, 3), ['996', '997', '998', '999']) !== false) {
$IdCard = substr($IdCard, 0, 6) . '18' . substr($IdCard, 6, 9);
} else {
$IdCard = substr($IdCard, 0, 6) . '19' . substr($IdCard, 6, 9);
}
}
$IdCard = $IdCard . self::MethodIdCardVerifyNumber($IdCard);
return $IdCard;
}
// 18位身份证校验码有效性检查
protected static function MethodIdCardChecksum18(string $IdCard) {
if (strlen($IdCard) != 18) {
return false;
}
$IdCardBase = substr($IdCard, 0, 17);
if (self::MethodIdCardVerifyNumber($IdCardBase) != strtoupper(substr($IdCard, 17, 1))) {
return false;
} else {
return true;
}
}
}