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注冊表格PHP SQL

[英]Register form PHP SQL

我正在嘗試制作注冊表。 單擊提交時,此表單需要將數據添加到數據庫。 它沒有給出任何錯誤或消息。 這是我的代碼,希望有人能幫助我。

<body>
 <form action="" method"post" class="form">
    <div class="form-group1">
    <label for="" >Username :</label>
    <input type="text" class="form-control" name="username" id="tb-username" placeholder="Username">
    </div>
    <div class="form-group2">
    <label for="" >Password :</label>
    <input type="password" class="form-control" name="password" id="tb-password" placeholder="Password">
    </div>
    <button type="submit" class="btn btn-primary" id="btn-submit" name="register">Submit</button>
    </form>

    <?php

    if(isset($_POST['register']))
    {
    if(isset($_POST['username'], $_POST['password']))
    {
        $username = $_POST['username'];
        $password = $_POST['password'];

        $link = mysqli_connect("localhost", "root", " ", "vbproject");

        if(mysqli_connect_errno())
        {
            printf("Connect failed: %s\n", mysqli_connect_errno());
            exit();
        }

        $sql = "INSERT INTO users (username, password)
                VALUES('$username', '$password')";

        mysqli_close($link);
    }
    }
     ?>

</body> 

你這里有錯誤

<form action="" method"post" class="form">

替換為

<form action="" method="post" class="form">

您錯過了=符號,導致您的請求成為GET請求,並且您正在以POST方法訪問

在關閉連接之前添加此行,它將執行您未在執行的查詢

mysqli_query($link,$sql);

您也需要:

 $sql = "INSERT INTO users (username, password)
        VALUES('$username', '$password')";
 $result = $link->query($sql);
 if($result === true){
  echo "Insert Success";
 }else{
  echo "Insert failed";
  }

請在表單標簽中將method"post"更改為method="post"

 <body>

    <form action="" method="post" class="form">
    <div class="form-group1">
    <label for="" >Username :</label>
    <input type="text" class="form-control" name="username" id="tb-username" placeholder="Username">
    </div>
    <div class="form-group2">
    <label for="" >Password :</label>
    <input type="password" class="form-control" name="password" id="tb-password" placeholder="Password">
    </div>
    <button type="submit" class="btn btn-primary" id="btn-submit" name="register">Submit</button>
    </form>

    <?php

    if(isset($_POST['register']))
    {
    if(isset($_POST['username'], $_POST['password']))
    {
        $username = $_POST['username'];
        $password = $_POST['password'];

        $link = mysqli_connect("localhost", "root", " ", "vbproject");

        if(mysqli_connect_errno())
        {
            printf("Connect failed: %s\n", mysqli_connect_errno());
            exit();
        }

        $sql = "INSERT INTO users (username, password)
                VALUES('$username', '$password')";
        if(mysqli_query($link, $sql)){
         echo 'Inserted';
        }else{
          echo 'Not Inserted';
        }
        mysqli_close($link);
    }
    }
     ?>

    </body> 

在代碼中添加以下行:

if(mysqli_query($link, $sql)){
         echo 'Inserted';
        }else{
          echo 'Not Inserted';
        }

您沒有運行mysql查詢。 請在下面找到解決方案:

$sql = "INSERT INTO users (username, password)
            VALUES('$username', '$password')";

mysqli_query($con, $sql); // this Line Missing

mysqli_close($link);

只是觀察您的代碼

<?php
if(isset($_POST['register']))
{

但是$ _POST ['register'}尚未分配任何值,並且if語句將失敗,建議您在此處添加value =“ submit”

<button type="submit" class="btn btn-primary" id="btn-submit" name="register">Submit</button>

這就是流程的方向

<?php
$con=mysqli_connect("localhost", "root", " ", "vbproject");
// Check connection
if (mysqli_connect_errno())
  {
  echo "Failed to connect to MySQL: " . mysqli_connect_error();
  }

// Perform queries 
 $sql = "INSERT INTO users (username, password)
            VALUES('$username', '$password')";
mysqli_query($con, $sql);

mysqli_close($con);
?>

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