javascript

php表单提交时的身份证号码验证 

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<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
    
    <head>
        <meta http-equiv="Content-Type" content="text/html; charset=gb2312">
        <title>
            Check card no
        </title>
        <script type='text/javascript'>
            /*Author:yufulongBlog:http://www.xiaoxiaozi.com*/
            var vcity = {
                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"
            };
            checktheform = function() {
                var card = document.getElementById('card_no').value;
                //是否为空    
                if (card === '') {
                    alert('请输入身份证号，身份证号不能为空');
                    document.getElementById('card_no').focus;
                    return false;
                }
                //校验长度，类型    
                if (isCardNo(card) === false) {
					//直接改变文本框后面的提示信息，而不是使用alert()弹窗
                    document.getElementById('sfz').innerHTML = '您输入的身份证号码不正确,请重新输入';
                    document.getElementById('card_no').focus;
                    return false;
                }
                //检查省份    
                if (checkProvince(card) === false) {
                    alert('您输入的身份证号码不正确,请重新输入');
                    document.getElementById('card_no').focus;
                    return false;
                }
                //校验生日    
                if (checkBirthday(card) === false) {
                    alert('您输入的身份证号码生日不正确,请重新输入');
                    document.getElementById('card_no').focus();
                    return false;
                }
                //检验位的检测    
                if (checkParity(card) === false) {
                    alert('您的身份证校验位不正确,请重新输入');
                    document.getElementById('card_no').focus();
                    return false;
                }
                alert('OK');
                return true;
            };
            //检查号码是否符合规范，包括长度，类型
            isCardNo = function(card) {
                //身份证号码为15位或者18位，15位时全为数字，18位前17位为数字，最后一位是校验位，可能为数字或字符X    
                var reg = /(^\d{15}$)|(^\d{17}(\d|X)$)/;
                if (reg.test(card) === false) {
                    return false;
                }
                return true;
            };
            //取身份证前两位,校验省份
            checkProvince = function(card) {
                var province = card.substr(0, 2);
                if (vcity[province] == undefined) {
                    return false;
                }
                return true;
            };
            //检查生日是否正确
            checkBirthday = function(card) {
                var len = card.length;
                //身份证15位时，次序为省（3位）市（3位）年（2位）月（2位）日（2位）校验位（3位），皆为数字    
                if (len == '15') {
                    var re_fifteen = /^(\d{6})(\d{2})(\d{2})(\d{2})(\d{3})$/;
                    var arr_data = card.match(re_fifteen);
                    var year = arr_data[2];
                    var month = arr_data[3];
                    var day = arr_data[4];
                    var birthday = new Date('19' + year + '/' + month + '/' + day);
                    return verifyBirthday('19' + year, month, day, birthday);
                }
                //身份证18位时，次序为省（3位）市（3位）年（4位）月（2位）日（2位）校验位（4位），校验位末尾可能为X    
                if (len == '18') {
                    var re_eighteen = /^(\d{6})(\d{4})(\d{2})(\d{2})(\d{3})([0-9]|X)$/;
                    var arr_data = card.match(re_eighteen);
                    var year = arr_data[2];
                    var month = arr_data[3];
                    var day = arr_data[4];
                    var birthday = new Date(year + '/' + month + '/' + day);
                    return verifyBirthday(year, month, day, birthday);
                }
                return false;
            };
            //校验日期
            verifyBirthday = function(year, month, day, birthday) {
                var now = new Date();
                var now_year = now.getFullYear();
                //年月日是否合理    
                if (birthday.getFullYear() == year && (birthday.getMonth() + 1) == month && birthday.getDate() == day) {
                    //判断年份的范围（3岁到100岁之间)        
                    var time = now_year - year;
                    if (time >= 3 && time <= 100) {
                        return true;
                    }
                    return false;
                }
                return false;
            };
            //校验位的检测
            checkParity = function(card) {
                //15位转18位    
                card = changeFivteenToEighteen(card);
                var len = card.length;
                if (len == '18') {
                    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 cardTemp = 0,
                    i, valnum;
                    for (i = 0; i < 17; i++) {
                        cardTemp += card.substr(i, 1) * arrInt[i];
                    }
                    valnum = arrCh[cardTemp % 11];
                    if (valnum == card.substr(17, 1)) {
                        return true;
                    }
                    return false;
                }
                return false;
            };
            //15位转18位身份证号
            changeFivteenToEighteen = function(card) {
                if (card.length == '15') {
                    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 cardTemp = 0,
                    i;
                    card = card.substr(0, 6) + '19' + card.substr(6, card.length - 6);
                    for (i = 0; i < 17; i++) {
                        cardTemp += card.substr(i, 1) * arrInt[i];
                    }
                    card += arrCh[cardTemp % 11];
                    return card;
                }
                return card;
            };
        </script>
    </head>
    
    <body>
        <form name="form1" method="post" action="">
            <label>
                身份证号<input name='card_no' type='text' id='card_no' onBlur='javascript:checktheform();'/>
				<em id="sfz">请输入正确的身份证号码</em>
            </label>
			<br/>
            <label>
                <input type="submit" name="Submit" value="提交">
            </label>
        </form>
    </body>

</html>