身份证号验证类 - PHP 工具类
<?php
/**
* Created by PhpStorm.
* User: peeke
* Date: 2020/4/10
* Time: 13:36
*/
namespace App\common\Helpers\tools;
class IdcardHelper
{
// 计算身份证校验码,根据国家标准GB 11643-1999
public static function idcard_verify_number($idcard_base)
{
if (strlen($idcard_base) != 17) {
return false;
}
//加权因子
$factor = array(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 = array('1', '0', 'X', '9', '8', '7', '6', '5', '4', '3', '2');
$checksum = 0;
for ($i = 0; $i < strlen($idcard_base); $i++) {
$checksum += substr($idcard_base, $i, 1) * $factor[$i];
}
$mod = $checksum % 11;
$verify_number = $verify_number_list[$mod];
return $verify_number;
}
// 将15位身份证升级到18位
public static function idcard_15to18($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), array('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 = $idcard . idcard_verify_number($idcard);
return $idcard;
}
// 18位身份证校验码有效性检查
public static function idcard_checksum18($idcard)
{
if (strlen($idcard) != 18) {
return false;
}
$idcard_base = substr($idcard, 0, 17);
if (idcard_verify_number($idcard_base) != strtoupper(substr($idcard, 17, 1))) {
return false;
} else {
return true;
}
}
// 验证身份证号
public static function validation_filter_id_card($id_card)
{
if (self::validateIsIncludeEmply($id_card)) {
if (strlen($id_card) == 18) {
return self::idcard_checksum18($id_card);
} elseif ((strlen($id_card) == 15)) {
$id_card = self::idcard_15to18($id_card);
return self::idcard_checksum18($id_card);
} else {
return false;
}
} else {
return false;
}
}
/**
* 身份证中间不能有空格
*
* @param $id_card
* @return bool
*/
public static function validateIsIncludeEmply($id_card)
{
if (strpos(trim($id_card), ' ') > 0 || strpos(trim($id_card), ' ') > 0) {
return false;
} else {
return true;
}
}
}