<?php
/**
* 身份证工具类
*
* @author Tongle Xu <xutongle@gmail.com> 2013-6-6
* @copyright Copyright (c) 2003-2103 tintsoft.com
* @license http://www.php100.com
* @version $Id$
*/
class Utils_Idcard {
/**
* 中国公民身份证号码最小长度。
*/
const CHINA_ID_MIN_LENGTH = 15;
/**
* 中国公民身份证号码最大长度。
*/
const CHINA_ID_MAX_LENGTH = 18;
/**
* 最低年限
*/
const MIN = 1930;
/**
* 省、直辖市代码表
*/
public static $cityCode = array ("11","12","13","14","15","21","22","23","31","32","33","34","35","36","37","41","42","43","44","45","46","50","51","52","53","54","61","62","63","64","65","71","81","82","91" );
/**
* 每位加权因子
*/
public static $power = array (7,9,10,5,8,4,2,1,6,3,7,9,10,5,8,4,2 );
/**
* 第18位校检码
*/
public static $verifyCode = array ("1","0","X","9","8","7","6","5","4","3","2" );
/**
* 国内身份证校验
*/
public static $cityCodes = array ('11' => '北京' );
/**
* 将15位身份证号码转换为18位
*
* @param idCard 15位身份编码
* @return 18位身份编码
*/
public static function conver15CardTo18($idCard) {
$idCard18 = "";
if (strlen ( $idCard ) != self::CHINA_ID_MIN_LENGTH) {
return null;
}
if (self::isNum ( $idCard )) {
// 获取出生年月日
$sYear = '19' . substr ( $idCard, 6, 2 );
$idCard18 = substr ( $idCard, 0, 6 ) . $sYear . substr ( $idCard, 8 );
// 转换字符数组
$iArr = str_split ( $idCard18 );
if ($iArr != null) {
$iSum17 = self::getPowerSum ( $iArr );
// 获取校验位
$sVal = self::getCheckCode18 ( $iSum17 );
if (strlen ( $sVal ) > 0) {
$idCard18 .= $sVal;
} else {
return null;
}
}
} else {
return null;
}
return $idCard18;
}
/**
* 验证身份证是否合法
*/
public static function validateCard($idCard) {
$card = trim ( $idCard );
if (self::validateIdCard18 ( $card )) {
return true;
}
if (self::validateIdCard15 ( $card )) {
return true;
}
return false;
}
/**
* 验证18位身份编码是否合法
*
* @param int $idCard 身份编码
* @return boolean 是否合法
*/
public static function validateIdCard18($idCard) {
$bTrue = false;
if (strlen ( $idCard ) == self::CHINA_ID_MAX_LENGTH) {
// 前17位
$code17 = substr ( $idCard, 0, 17 );
// 第18位
$code18 = substr ( $idCard, 17, 1 );
if (self::isNum ( $code17 )) {
$iArr = str_split ( $code17 );
if ($iArr != null) {
$iSum17 = self::getPowerSum ( $iArr );
// 获取校验位
$val = self::getCheckCode18 ( $iSum17 );
if (strlen ( $val ) > 0 && $val == $code18) {
$bTrue = true;
}
}
}
}
return $bTrue;
}
/**
* 验证15位身份编码是否合法
*
* @param string $idCard 身份编码
* @return boolean 是否合法
*/
public static function validateIdCard15($idCard) {
if (strlen ( $idCard ) != self::CHINA_ID_MIN_LENGTH) {
return false;
}
if (self::isNum ( $idCard )) {
$proCode = substr ( $idCard, 0, 2 );
if (! isset ( self::$cityCodes [$proCode] )) {
return false;
}
//升到18位
$idCard = self::conver15CardTo18($idCard);
return self::validateIdCard18($idCard);
} else {
return false;
}
return true;
}
/**
* 根据身份编号获取年龄
*
* @param string idCard 身份编号
* @return 年龄
*/
public static function getAgeByIdCard($idCard) {
$iAge = 0;
if (strlen ( $idCard ) == self::CHINA_ID_MIN_LENGTH) {
$idCard = self::conver15CardTo18 ( $idCard );
}
$year = substr ( $idCard, 6, 4 );
$iCurrYear = date ( 'Y', time () );
$iAge = $iCurrYear - $year;
return $iAge;
}
/**
* 根据身份编号获取生日天
*
* @param string $idCard 身份编号
* @return NULL string
*/
public static function getDateByIdCard($idCard) {
$len = strlen ( $idCard );
if ($len < self::CHINA_ID_MIN_LENGTH) {
return null;
} else if ($len == CHINA_ID_MIN_LENGTH) {
$idCard = self::conver15CardTo18 ( $idCard );
}
return substr ( $idCard, 12, 2 );
}
/**
* 根据身份编号获取性别
*
* @param string $idCard 身份编号
* @return 性别(M-男，F-女，N-未知)
*/
public static function getGenderByIdCard($idCard) {
$sGender = "N";
if (strlen ( $idCard ) == self::CHINA_ID_MIN_LENGTH) {
$idCard = self::conver15CardTo18 ( $idCard );
}
$sCardNum = substr ( $idCard, 16, 1 );
if (( int ) $sCardNum % 2 != 0) {
$sGender = "M";
} else {
$sGender = "F";
}
return $sGender;
}
/**
* 根据身份编号获取户籍省份
*
* @param string $idCard 身份编号
* @return string
*/
public static function getProvinceByIdCard($idCard) {
$len = strlen ( $idCard );
$sProvince = null;
$sProvinNum = "";
if ($len == self::CHINA_ID_MIN_LENGTH || $len == self::CHINA_ID_MAX_LENGTH) {
$sProvinNum = substr ( $idCard, 0, 2 );
}
$sProvince = self::$cityCodes [$sProvinNum];
return $sProvince;
}
/**
* 数字验证
*
* @param int $val
*/
public static function isNum($val) {
return $val == null || $val == "" ? false : 0 < preg_match ( '/^[0-9]*$/', $val );
}
/**
* 验证小于当前日期 是否有效
*
* @param int $iYear 待验证日期(年)
* @param int $iMonth 待验证日期(月 1-12)
* @param int $iDate 待验证日期(日)
* @return 是否有效
*/
public static function valiDate($iYear, $iMonth, $iDate) {
$year = date ( 'Y', time () );
if ($iYear < self::MIN || $iYear >= $year) {
return false;
}
if ($iMonth < 1 || $iMonth > 12) {
return false;
}
switch ($iMonth) {
case 4 :
case 6 :
case 9 :
case 11 :
$datePerMonth = 30;
break;
case 2 :
$dm = (($iYear % 4 == 0 && $iYear % 100 != 0) || ($iYear % 400 == 0)) && ($iYear > self::MIN && $iYear < $year);
$datePerMonth = $dm ? 29 : 28;
break;
default :
$datePerMonth = 31;
}
return ($iDate >= 1) && ($iDate <= $datePerMonth);
}
/**
* 将身份证的每位和对应位的加权因子相乘之后，再得到和值
*
* @param array $iArr
* @return 身份证编码。
*/
private static function getPowerSum($iArr) {
$iSum = 0;
$power_len = count ( self::$power );
$iarr_len = count ( $iArr );
if ($power_len == $iarr_len) {
for($i = 0; $i < $iarr_len; $i ++) {
for($j = 0; $j < $power_len; $j ++) {
if ($i == $j) {
$iSum = $iSum + $iArr [$i] * self::$power [$j];
}
}
}
}
return $iSum;
}
/**
* 将power和值与11取模获得余数进行校验码判断
*
* @param int $iSum
* @return 校验位
*/
private static function getCheckCode18($iSum) {
$sCode = "";
switch ($iSum % 11) {
case 10 :
$sCode = "2";
break;
case 9 :
$sCode = "3";
break;
case 8 :
$sCode = "4";
break;
case 7 :
$sCode = "5";
break;
case 6 :
$sCode = "6";
break;
case 5 :
$sCode = "7";
break;
case 4 :
$sCode = "8";
break;
case 3 :
$sCode = "9";
break;
case 2 :
$sCode = "x";
break;
case 1 :
$sCode = "0";
break;
case 0 :
$sCode = "1";
break;
}
return $sCode;
}
}