php用户注册页面利用js进行表单验证具体实例


<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
    <head>
        <meta http-equiv="Content-Type" content="text/html; charset=gb2312" /> 
        <title>用户注册 - 脚本之家</title>
        <link href="https://www.jb51.net/css/login.css" type="text/css" />
        <link href="https://www.jb51.net/css/page_bottom.css" type="text/css" />
        <script type="text/javascript" src="https://www.jb51.net/js/jquery-1.7.1.js"></script>
        <script type="text/javascript">
            var flag = {
                "email":false,
                "nickname":false,
                "password":false,
                "verify":false
            };

            $(function(){
                $("#txtEmail").blur(function () {
                                        var email=$(this).val();
                                        //alert(email);
                                        if(email==""){
                                            $("#email\\.info").html("Email地址不能为空");
                                            return;
                                        }
                                        var pattern=https://www.jb51.net/\b(^['_A-Za-z0-9-]+(\.['_A-Za-z0-9-]+)*@([A-Za-z0-9-])+(\.[A-Za-z0-9-]+)*((\.[A-Za-z0-9]{2,})|(\.[A-Za-z0-9]{2,}\.[A-Za-z0-9]{2,}))$)\b/;
                                        if(!pattern.test(email)){
                                            $("#email\\.info").html("Email格式不正确");
                                            return;
                                        }
                                        $.get("check_email.php?email="+email,null,
                                            function(data){
                                                $("#email\\.info").html(data);
                                                if (data=="可以注册") {
                                                    flag.email=true;
                                                }
                                            }
                                        );
                                    });
                $("#txtNickName").blur(function () {
                                            var nickname=$(this).val();
                                            if(nickname==""){
                                                $("#name\\.info").html("昵称不能为空");
                                                return;
                                            }
                                            var pattern = /\b(^['A-Za-z0-9]{4,20}$)\b/;
                                            if (!pattern.test(nickname)) {
                                                $("#name\\.info").html("昵称格式不正确");
                                                return;
                                            }else{
                                                $("#name\\.info").html("昵称格式正确");
                                                flag.nickname=true;
                                                return;
                                            }
                                       });
                $("#txtPassword").blur(function () {
                                            var password=$(this).val();
                                            if (password=="") {
                                                $("#password\\.info").html("密码不能为空");
                                                return;
                                            }
                                            var pattern = /\b(^['A-Za-z0-9]{4,20}$)\b/;
                                            if (!pattern.test(password)) {
                                                $("#password\\.info").html("密码格式不正确");
                                                return;   
                                            }else{
                                                $("#password\\.info").html("密码格式正确");
                                                //flag.password=true;
                                                return;
                                            }
                                       });
                $("#txtRepeatPass").blur(function () {
                                            var password1=$(this).val();
                                            if (password1=="") {
                                                $("#password1\\.info").html("密码不能为空");
                                                return;
                                            }
                                            var pattern = /\b(^['A-Za-z0-9]{4,20}$)\b/;
                                            if (!pattern.test(password1)) {
                                                $("#password1\\.info").html("密码格式不正确");
                                                return;   
                                            }else if(password1!=$("#txtPassword").val()){
                                                $("#password1\\.info").html("两次输入的密码不一致");
                                                return;
                                            }else{
                                                $("#password1\\.info").html("重复密码正确");
                                                flag.password=true;
                                                return;
                                            }                                            
                                        });
                $("#txtVerifyCode").blur(function () {
                                            var verify=$(this).val();
                                            if(verify==""){
                                                $("#number\\.info").html("验证码不能为空");
                                                return;
                                            }
                                            $.post("./verify/check.php",{verify:verify},
                                                function(data){
                                                    $("#number\\.info").html(data);
                                                    if (data=="验证成功") {
                                                        flag.verify=true;
                                                    }
                                                }
                                            );
                                         })
                $("#f").submit(function(){
                                    var ok = flag.email&&flag.password&&flag.verify&&flag.nickname;
                                    if(ok==false){
                                        alert("表单项正在检测或存在错误");
                                        history.back();
                                        return false;
                                    }
                                    return true;
                                }); 
            })
        </script>
    </head>
    <body>
        <?php include("../common/head.php"); ?>
        <div>
            注册步骤:<span>1.填写信息</span> > 2.验证邮箱 > 3.注册成功
        </div>
        <div>
            <form method="post" action="save_reg.php">
                <h2>以下均为必填项</h2>
                <table >
                    <tr>
                        <td valign="top">请填写您的Email地址:</td>
                        <td>
                            <input type="text"/>
                            <div>
                                <p>请填写有效的Email地址。</p>
                                <span></span>
                            </div>
                        </td>
                    </tr>
                    <tr>
                        <td valign="top">设置您在脚本之家的昵称:</td>
                        <td>
                            <input type="text" />
                            <div>
                                <p>由小写英文字母、中文、数字组成,长度4-20个字符,一个汉字为两个字符。</p>
                                <span></span>
                            </div>
                        </td>
                    </tr>
                    <tr>
                        <td valign="top">设置密码:</td>
                        <td>
                            <input type="password" />
                            <div>
                                <p>您的密码可以由大小写英文字母、数字组成,长度6-20位。</p>
                                <span></span>
                            </div>
                        </td>
                    </tr>
                    <tr>
                        <td valign="top">再次输入您设置的密码:</td>
                        <td>
                            <input type="password"/>
                            <div>
                            <span></span>
                            </div>
                        </td>
                    </tr>
                    <tr>
                        <td valign="top">验证码:</td>
                        <td>
                            <img src='https://www.jb51.net/article/verify/verify.php'/>
                            <input type="text"/>
                            <div>
                                <p>
                                    <span>请输入图片中的四个字母。</span>                                    
                                    <a href="#">看不清楚?换个图片</a>
                                    <br />
                                    <span></span>
                                </p>
                            </div>
                        </td>
                    </tr>
                </table>

                <div>
                    <input type="submit" value="注 册"/>
                </div>
            </form>
        </div>
        <?php include("../common/foot.php"); ?>
    </body>
</html>

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