<?php
namespace tools;
//身份证验证类

class Idcard {
    public $aWeight = [7,9,10,5,8,4,2,1,6,3,7,9,10,5,8,4,2]; //十七位数字本体码权重
    public $aValidate = ['1','0','X','9','8','7','6','5','4','3','2']; //mod11,对应校验码字符值
    public $birthday;//出生年月

    /**
     * 验证出生日期
     */
    public  function isChinaIDCardDate($iY, $iM, $iD)
    {
        $iDate =  $iY . '-' . $iM . '-' . $iD;
        $rPattern = '/^(([0-9]{2})|(19[0-9]{2})|(20[0-9]{2}))-((0[1-9]{1})|(1[012]{1}))-((0[1-9]{1})|(1[0-9]{1})|(2[0-9]{1})|3[01]{1})$/';
        if(preg_match($rPattern, $iDate, $arr)){
            $this->birthday = $iDate;
            return true;
        }
        return false;
    }
    /**
     * 根据身份证号前17位, 算出识别码
     */
    public function getValidateCode($id)
    {
        $id = strtoupper($id);
        $id17 = substr($id,0,17);
        $sum = 0;
        $len = strlen($id17);
        for ($i=0; $i<$len; $i++){
            $sum += $id17[$i] * $this->aWeight[$i];
        }
        $mode = $sum % 11;
        return $this->aValidate[$mode];
    }
    /**
     * 验证身份证号
     */
    public function isChinaIDCard($id)
    {
        $id = strtoupper($id);
        if(!$id){
            return false;
        }
        $len = strlen($id);
        if($len == 18){
            if (!$this->isChinaIDCardDate(substr($id,6,4), substr($id,10,2), substr($id,12,2))){
                return false;
            }
            $code = $this->getValidateCode($id);
            if (strtoupper($code) == substr($id,17,1)){
                return true;
            }
            return false;
        }
        else if($len == 15)
        {
            if(!$this->isChinaIDCardDate('19'.substr($id,6,2),substr($id,8,2),substr($id,10,2))){
                return false;
            }
            if(!is_numeric($id)){
                return false;
            }
            return true;
        }
        return false;
    }
    /**
     * 根据身份证号，自动返回对应的性别
     */
    public function getChinaIDCardSex($cid)
    {
        $cid = strtoupper($cid);
        $sexint = (int)substr($cid,16,1);
        return $sexint % 2 === 0 ? '女' : '男';
    }
    /**
     * 根据身份证号，自动返回对应的星座
     */
    public function getChinaIDCardXZ($cid)
    {
        $cid = strtoupper($cid);
        $bir = substr($cid,10,4);
        $month = (int)substr($bir,0,2);
        $day = (int)substr($bir,2);
        $strValue = '';
        if(($month == 1 && $day <= 21) || ($month == 2 && $day <= 19)) {
            $strValue = "水瓶座";
        }else if(($month == 2 && $day > 20) || ($month == 3 && $day <= 20)) {
            $strValue = "双鱼座";
        }else if (($month == 3 && $day > 20) || ($month == 4 && $day <= 20)) {
            $strValue = "白羊座";
        }else if (($month == 4 && $day > 20) || ($month == 5 && $day <= 21)) {
            $strValue = "金牛座";
        }else if (($month == 5 && $day > 21) || ($month == 6 && $day <= 21)) {
            $strValue = "双子座";
        }else if (($month == 6 && $day > 21) || ($month == 7 && $day <= 22)) {
            $strValue = "巨蟹座";
        }else if (($month == 7 && $day > 22) || ($month == 8 && $day <= 23)) {
            $strValue = "狮子座";
        }else if (($month == 8 && $day > 23) || ($month == 9 && $day <= 23)) {
            $strValue = "处女座";
        }else if (($month == 9 && $day > 23) || ($month == 10 && $day <= 23)) {
            $strValue = "天秤座";
        }else if (($month == 10 && $day > 23) || ($month == 11 && $day <= 22)) {
            $strValue = "天蝎座";
        }else if (($month == 11 && $day > 22) || ($month == 12 && $day <= 21)) {
            $strValue = "射手座";
        }else if (($month == 12 && $day > 21) || ($month == 1 && $day <= 20)) {
            $strValue = "魔羯座";
        }
        return $strValue;
    }
    /**
     * 根据身份证号，自动返回对应的生肖
     */
    public function getChinaIDCardSX($cid)
    {
        $cid = strtoupper($cid);
        $start = 1901;
        $end = $end = (int)substr($cid,6,4);
        $x = ($start - $end) % 12;
        $value = "";
        if($x == 1 || $x == -11){$value = "鼠";}
        if($x == 0) {$value = "牛";}
        if($x == 11 || $x == -1){$value = "虎";}
        if($x == 10 || $x == -2){$value = "兔";}
        if($x == 9 || $x == -3){$value = "龙";}
        if($x == 8 || $x == -4){$value = "蛇";}
        if($x == 7 || $x == -5){$value = "马";}
        if($x == 6 || $x == -6){$value = "羊";}
        if($x == 5 || $x == -7){$value = "猴";}
        if($x == 4 || $x == -8){$value = "鸡";}
        if($x == 3 || $x == -9){$value = "狗";}
        if($x == 2 || $x == -10){$value = "猪";}
        return $value;
    }
    /**
     * 根据身份证号，自动返回对应的省、自治区、直辖市代
     */
    public function getProvince($id){
        $id = strtoupper($id);
        $index = substr($id,0,2);
        $area = array(
            11 => "北京",  12 => "天津", 13 => "河北",   14 => "山西", 15 => "内蒙古", 21 => "辽宁",
            22 => "吉林",  23 => "黑龙江", 31 => "上海",  32 => "江苏",  33 => "浙江", 34 => "安徽",
            35 => "福建",  36 => "江西", 37 => "山东", 41 => "河南", 42 => "湖北",  43 => "湖南",
            44 => "广东", 45 => "广西",  46 => "海南", 50 => "重庆", 51 => "四川", 52 => "贵州",
            53 => "云南", 54 => "西藏", 61 => "陕西", 62 => "甘肃", 63 => "青海", 64 => "宁夏",
            65 => "新疆", 71 => "台湾", 81 => "香港", 82 => "澳门", 91 => "国外"
        );
        return $area[$index];
    }

    // 获取生日
    public function getBirthday($idcard){
        $idcard = strtoupper($idcard);
        if(!$this->isChinaIDCard($idcard) || strlen($idcard) != 18){
            return false;
        }
        $bir = substr($idcard, 6, 8);
        $year = (int)substr($bir, 0, 4);
        $month = (int)substr($bir, 4, 2);
        $day = (int)substr($bir, 6, 2);
        return date('Y-m-d',strtotime($year . "-" . $month . "-" . $day));
    }
}