php灭绝师太手把手教你注册信息验证

<?php
//根据需求生成验证码
function getRandomString($len, $chars=null)  
{  
    if (is_null($chars)) {  
        $chars = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789";  
    }  
    mt_srand(10000000*(double)microtime());  
    for ($i = 0, $str = '', $lc = strlen($chars)-1; $i < $len; $i++) {  
        $str .= $chars[mt_rand(0, $lc)];  
    }  
    return $str;  
}
//生成验证码
function getRandomString1(){
    $chars = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789";  
    for($i = 0;$i < 4;$i++){
        $code .= $chars{mt_rand(0,strlen($chars)-1)};
    }
    return $code;
}
//调用验证码函数生成验证码，赋值到变量以便后面使用
$yanzhengma = getRandomString(6);
?>
<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <link rel="stylesheet" href="https://stackpath.bootstrapcdn.com/bootstrap/3.4.1/css/bootstrap.min.css" integrity="sha384-HSMxcRTRxnN+Bdg0JdbxYKrThecOKuH5zCYotlSAcp1+c8xmyTe9GYg1l9a69psu" crossorigin="anonymous">
    <script src="https://code.jquery.com/jquery-3.1.1.min.js"></script>
    <script src="https://stackpath.bootstrapcdn.com/bootstrap/3.4.1/js/bootstrap.min.js" integrity="sha384-aJ21OjlMXNL5UyIl/XNwTMqvzeRMZH2w8c5cRVpzpU8Y5bApTppSuUkhZXN0VxHd" crossorigin="anonymous"></script>
</head>
<body>
    <div class="container">
        <form action="index2.php"  method="post">
            <div class="form-group">
                <label for="exampleInputEmail1">邮箱</label>
                <input type="email" class="form-control" name="exampleInputEmail1" id="exampleInputEmail1" aria-describedby="emailHelp">
                <small id="emailHelp" class="form-text text-muted">We'll never share your email with anyone else.</small>
            </div>
            <div class="form-group">
                <label for="exampleInputPassword1">密码</label>
                <input type="password" name="exampleInputPassword1" class="form-control" id="exampleInputPassword1">
            </div>
            <div class="form-group">
                <label for="exampleInputPassword2">密码</label>
                <input type="password" name="exampleInputPassword2" class="form-control" id="exampleInputPassword2">
            </div>
            <div class="form-group">
                <label for="exampleInputyanzhengma">验证码：</label>
                <?=$yanzhengma?><?=$errorsyzm?>
                <input type="text" name="exampleInputyanzhengma" class="form-control" id="exampleInputyanzhengma">
                <input type="hidden" name="hiddenyanzhengma" value="<?=$yanzhengma?>">
            </div>
            <button type="submit" name="tijiao" value="1" class="btn btn-primary">登录</button>
        </form>
    </div>
</body>
</html>
<?php
//获取用户名密码
$email = $_POST["exampleInputEmail1"];
$pwd1 = $_POST["exampleInputPassword1"];
$pwd2 = $_POST["exampleInputPassword2"];
//获取验证码与隐藏验证码，隐藏验证码用于页面提交后（等于刷新了也i按）生成新的验证码，而无法匹配
$yanzheng = $_POST["exampleInputyanzhengma"];
$hiddenyanzhengma = $_POST["hiddenyanzhengma"];
$tijiao = $_POST["tijiao"];
if($tijiao == 1){
    if(strlen($email) > 10) {
        if($pwd1 == $pwd2) {
            if(strlen($pwd2) > 8) {
                if($yanzheng === $hiddenyanzhengma) {
                    echo '注册成功';
                }else{
                    echo '<span style="color:red">验证码输入错误</span>';
                }
            }else{
                echo '<span style="color:red">密码长度至少为8位</span>';
            }
        }else{
            echo '<span style="color:red">两次输入密码不一致</span>';
        }
    }else{
        echo '<span style="color:red">邮箱长度至少10位</span>';
    }
}
?>
php灭绝师太手把手教你注册信息验证

php灭绝师太手把手教你注册信息验证

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