}
function get_shengxiao($cid) { //根据身份证号，自动返回对应的生肖
if (!isIdCard($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 (!isIdCard($cid)) return '';
$sexint = (int)substr($cid,16,1);
return $sexint % 2 === 0 ? '女' : '男';
}
function isIdCard($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(7,9,5,8,4,2,1,3,7,2);
//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;
}
}
?>
另外，关于身份证号验证本站还提供了身份证归属地查询工具如下：
