身份证验证PHP类

 php根据身份证号，自动获取对应的星座函数，然后自动返回对应的星座，自动返回性别，判断是否成年

<?php

class idcardaction extends action{
// php根据身份证号，自动获取对应的星座函数
  function get_xingzuo($cid) { // 根据身份证号，自动返回对应的星座
    if (!$this->isidcard($cid)) return '';
    $bir = substr($cid,10,4);
    $month = (int)substr($bir,0,2);
    $day = (int)substr($bir,2);
    $strvalue = '';
    if (($month == 1 && $day >= 20) || ($month == 2 && $day <= 18)) {
      $strvalue = "水瓶座";
    } else if (($month == 2 && $day >= 19) || ($month == 3 && $day <= 20)) {
      $strvalue = "双鱼座";
    } else if (($month == 3 && $day > 20) || ($month == 4 && $day <= 19)) {
      $strvalue = "白羊座";
    } else if (($month == 4 && $day >= 20) || ($month == 5 && $day <= 20)) {
      $strvalue = "金牛座";
    } else if (($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 <= 22)) {
      $strvalue = "狮子座";
    } else if (($month == 8 && $day >= 23) || ($month == 9 && $day <= 22)) {
      $strvalue = "处女座";
    } else if (($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 <= 19)) {
      $strvalue = "魔羯座";
    }
    return $strvalue;

  }
  function get_shengxiao($cid) { //根据身份证号，自动返回对应的生肖
    if (!$this->isidcard($cid)) return '';
    $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 $value;
  }
  function get_xingbie($cid) { //根据身份证号，自动返回性别
    if (!$this->isidcard($cid)) return '';
    $sexint = (int)substr($cid,16,1);

    return $sexint % 2 === 0 ? '女' : '男';
  }

  function checkbig18($idcard){//判断是否成年
    $year = substr($idcard,6,4);
    $big18 = $year+18;
    $nowyear = date("y",time());
    if($big18 <= $nowyear){
      return true;
    }else{
      return false;
    }
  }

  function getverifybit($idcard_base)
  {
    if(strlen($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;
  }

  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;
  }




  function idcard_15to18($idcard){//15到18转换
    if (strlen($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 = $idcard.$this->idcard_verify_number($idcard);
    return $idcard;
  }


  function check_cardid($cardid)//判断身份证大是否正确。
  {
    $cardlen = strlen($cardid);
    if($cardlen ==15)
    {
      $pattern = "/^[0-9]{15}$/"; //$pattern="/^d{15}$/";
      $num = preg_match($pattern,$cardid);
    }
    elseif($cardlen ==18)
    {
      $pattern = "/^d{17}[0-9xx]$/";
      $num=preg_match($pattern,$cardid);
    }
    else
    {
      return false;
    }
    return $num;
  }

  function chkgb2312($str){//判断是否为中文
    if(preg_match('/^[x7f-xff]+$/',$str)){
      return true;
    }else{
      return false;
    }
  }

  function isidcard($number) { // 检查是否是身份证号
    // 转化为大写，如出现x
    $number = strtoupper($number);
    //加权因子
    $wi = array(7, 9, 10, 5, 8, 4, 2, 1, 6, 3, 7, 9, 10, 5, 8, 4, 2);
    //校验码串
    $ai = array('1', '0', 'x', '9', '8', '7', '6', '5', '4', '3', '2');
    //按顺序循环处理前17位
    $sigma = 0;
    for ($i = 0;$i < 17;$i++) {
      //提取前17位的其中一位，并将变量类型转为实数
      $b = (int) $number{$i};

      //提取相应的加权因子
      $w = $wi[$i];

      //把从身份证号码中提取的一位数字和加权因子相乘，并累加
      $sigma += $b * $w;
    }
    //计算序号
    $snumber = $sigma % 11;

    //按照序号从校验码串中提取相应的字符。
    $check_number = $ai[$snumber];

    if ($number{17} == $check_number) {
      return true;
    } else {
      return false;
    }
  }
}
?>