身份证号验证类 - PHP 工具类

Posted 2022-11-04

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;