1、簡單的正則表達(dá)式：

?

（1）preg_match("/^(\d{18,18}|\d{15,15}|\d{17,17}x)$/",$id_card)
（2）preg_match("/^(\d{6})(18|19|20)?(\d{2})([01]\d)([0123]\d)(\d{3}) (\d|X)?$/",$id_card)
（3）preg_match("/(^\d{15}$/)|(\d{17}(?:\d|x|X)$/),$id_card)

2、復(fù)雜并且嚴(yán)格一些的驗證：

//這個可以驗證15位和18位的身份證，并且包含生日和校驗位的驗證。 ?
//如果有興趣，還可以加上身份證所在地的驗證，就是前6位有些數(shù)字合法有些數(shù)字不合法。

function isIdCardNo(num)
{ ?
????????? num = num.toUpperCase();
???????? //身份證號碼為15位或者18位，15位時全為數(shù)字，18位前17位為數(shù)字，最后一位是校驗位，可能為數(shù)字或字符X。 ?
????????? if (!(/(^\d{15}$)|(^\d{17}([0-9]|X)$)/.test(num))) ?
????????? {
?????????????? alert('輸入的身份證號長度不對，或者號碼不符合規(guī)定！\n15位號碼應(yīng)全為數(shù)字，18位號碼末位可以為數(shù)字或X。');
????????????? return false;
???????? }
//校驗位按照ISO 7064:1983.MOD 11-2的規(guī)定生成，X可以認(rèn)為是數(shù)字10。
//下面分別分析出生日期和校驗位
var len, re;
len = num.length;
if (len == 15)
{
re = new RegExp(/^(\d{6})(\d{2})(\d{2})(\d{2})(\d{3})$/);
var arrSplit = num.match(re);

//檢查生日日期是否正確
var dtmBirth = new Date('19' + arrSplit[2] + '/' + arrSplit[3] + '/' + arrSplit[4]);
var bGoodDay;
bGoodDay = (dtmBirth.getYear() == Number(arrSplit[2])) && ((dtmBirth.getMonth() + 1) == Number(arrSplit[3])) && (dtmBirth.getDate() == Number(arrSplit[4]));
if (!bGoodDay)
{
????????? alert('輸入的身份證號里出生日期不對！'); ?
?????????? return false;
}
else
{
//將15位身份證轉(zhuǎn)成18位
//校驗位按照ISO 7064:1983.MOD 11-2的規(guī)定生成，X可以認(rèn)為是數(shù)字10。
????????? var arrInt = new Array(7, 9, 10, 5, 8, 4, 2, 1, 6, 3, 7, 9, 10, 5, 8, 4, 2);
?????????? var arrCh = new Array('1', '0', 'X', '9', '8', '7', '6', '5', '4', '3', '2');
?????????? var nTemp = 0, i; ?
??????????? num = num.substr(0, 6) + '19' + num.substr(6, num.length - 6);
?????????? for(i = 0; i < 17; i ++)
????????? {
??????????????? nTemp += num.substr(i, 1) * arrInt[i];
?????????? }
?????????? num += arrCh[nTemp % 11]; ?
??????????? return num; ?
} ?
}
if (len == 18)
{
re = new RegExp(/^(\d{6})(\d{4})(\d{2})(\d{2})(\d{3})([0-9]|X)$/);
var arrSplit = num.match(re);

//檢查生日日期是否正確
var dtmBirth = new Date(arrSplit[2] + "/" + arrSplit[3] + "/" + arrSplit[4]);
var bGoodDay;
bGoodDay = (dtmBirth.getFullYear() == Number(arrSplit[2])) && ((dtmBirth.getMonth() + 1) == Number(arrSplit[3])) && (dtmBirth.getDate() == Number(arrSplit[4]));
if (!bGoodDay)
{
alert(dtmBirth.getYear());
alert(arrSplit[2]);
alert('輸入的身份證號里出生日期不對！');
return false;
}
else
{
//檢驗18位身份證的校驗碼是否正確。
//校驗位按照ISO 7064:1983.MOD 11-2的規(guī)定生成，X可以認(rèn)為是數(shù)字10。
var valnum;
var arrInt = new Array(7, 9, 10, 5, 8, 4, 2, 1, 6, 3, 7, 9, 10, 5, 8, 4, 2);
var arrCh = new Array('1', '0', 'X', '9', '8', '7', '6', '5', '4', '3', '2');
var nTemp = 0, i;
for(i = 0; i < 17; i ++)
{
nTemp += num.substr(i, 1) * arrInt[i];
}
valnum = arrCh[nTemp % 11];
if (valnum != num.substr(17, 1))
{
alert('18位身份證的校驗碼不正確！應(yīng)該為：' + valnum);
return false;
}
return num;
}
}
return false;
}
3、嚴(yán)格的驗證：
<script>
var aCity={11:"北京",12:"天津",13:"河北",14:"山西",15:"內(nèi)蒙古",21:"遼寧",22:"吉林",23:"黑龍江 ",31:"上海",32:"江蘇",33:"浙江",34:"安徽",35:"福建",36:"江西",37:"山東",41:"河南",42:"湖北 ",43:"湖南",44:"廣東",45:"廣西",46:"海南",50:"重慶",51:"四川",52:"貴州",53:"云南",54:"西藏 ",61:"陜西",62:"甘肅",63:"青海",64:"寧夏",65:"新Unbsp;疆",71:"臺灣",81:"香港",82:"澳門",91:"國外 "}

function cidInfo(sId){
var iSum=0
var info=""
if(!/^d{17}(d|x)$/i.test(sId))return false;
sId=sId.replace(/x$/i,"a");
if(aCity[parseInt(sId.substr(0,2))]==null)return "Error:非法地區(qū)";
sBirthday=sId.substr(6,4)+"-"+Number(sId.substr(10,2))+"-"+Number(sId.substr(12,2));
var d=new Date(sBirthday.replace(/-/g,"/"))
if(sBirthday!=(d.getFullYear()+"-"+ (d.getMonth()+1) + "-" + d.getDate()))return "Error:非法生日";
for(var i = 17;i>=0;i --) iSum += (Math.pow(2,i) % 11) * parseInt(sId.charAt(17 - i),11)
if(iSum%11!=1)return "Error:非法證號";
return aCity[parseInt(sId.substr(0,2))]+","+sBirthday+","+(sId.substr(16,1)%2?" 男":"女")
}
document.write(cidInfo("380524198002300016"),"<br/>");
document.write(cidInfo("340524198002300019"),"<br/>")
document.write(cidInfo("340524197711111111"),"<br/>")
document.write(cidInfo("34052419800101001x"),"<br/>");
</script>

轉(zhuǎn)載于:https://www.cnblogs.com/devinhua/articles/1726292.html

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