發送HTML表單數據我無法讓我的HTML表單輸入數據通過PHP MySQL數據庫存儲MySQL數據庫

Question

。當我填寫表格並提交時，我的register.php頁面是空白的，成功或錯誤消息都不會回顯到頁面上。

注：是的，我有一個root密碼和數據庫名稱。在我的代碼中，兩者都填寫正確，我只是刪除了他們的這篇文章。

編輯：分號固定，仍然獲得未知的錯誤。

HTML表單：

<form action="register.php" method="POST"> 
       <input type="text" name="first_name" placeholder="first name" /><br /><br /> 
       <input type="text" name="last_name" placeholder="last name" /><br /><br /> 
       <input type="text" name="email" placeholder="email address" /><br /><br /> 
       <input type="text" name="password" placeholder="password" /><br /><br /> 
       <input type="submit" name="register" value="Sign Up" /> 
      </form> 

register.php

<?php 
if (isset($_POST['register'])) { 
    $host = "localhost"; 
    $username = "root"; 
    $password = ""; 
    $database = ""; 
    $conn = mysqli_connect($host, $username, $password, $database); 

    if (mysqli_connect_errno($conn)) { 
     echo "Failed to connect to MySQL: " . mysqli_connect_error(); 
    } 

    $first_name = mysqli_real_escape_string($_POST['first_name']); 
    $last_name = mysqli_real_escape_string($_POST['last_name']); 
    $email = mysqli_real_escape_string($_POST['email']); 
    $password = mysqli_real_escape_string($_POST['password']); 
    $date = date("Y-m-d"); 

    $password = md5($password); 

    $sql = "INSERT INTO users (first_name, last_name, email, password, sign_up_date) VALUES ('$first_name', '$last_name', '$email', '$password', '$date')"; 

    if (!mysqli_query($sql)) { 
     die('Error: ' .mysqli_error()); 
    } 

    echo "Entry added successfully"; 

    mysqli_close($conn); 
} 
?> 

Answer 1

試試這個：

<?php 
if (isset($_POST['register'])) { 
    $host = "localhost"; 
    $username = "root"; 
    $password = ""; 
    $database = ""; //also added semi colon and what database name 
    $conn = mysqli_connect($host, $username, $password, $database); 

    if (mysqli_connect_errno($conn)) { 
     echo "Failed to connect to MySQL: " . mysqli_connect_error(); 
    } 

    $first_name = mysqli_real_escape_string($conn,$_POST['first_name']); //I've added $conn inside mysqli_real_escape_string expected 1st param 
    $last_name = mysqli_real_escape_string($conn,$_POST['last_name']); 
    $email = mysqli_real_escape_string($conn,$_POST['email']); 
    $password = mysqli_real_escape_string($conn,$_POST['password']); 
    $date = date("Y-m-d"); 

    $password = md5($password); 

    $sql = "INSERT INTO users (first_name, last_name, email, password, sign_up_date) VALUES ('$first_name', '$last_name', '$email', '$password', '$date')"; 
    $query = mysqli_query($conn, $sql); // I think this will add data in your database. 

    if (!$conn) { //I change this from mysql_query($sql) 
     die('Error: ' .mysqli_error()); 
    } else { 
     echo "Entry added successfully"; 

     mysqli_close($conn); 
    } 
} 

Answer 2

您在這裏有一個語法錯誤（缺少分號）：

$database = "" 

應該

$database = ""; 

如果你在錯誤報告功能後，您會看到致命的錯誤，而不是空白頁

Answer 3

你在形式的錯字：

$database = "" 

（缺少分號）

請試試這個 - 加$康恩爭論。

if (isset($_POST['register'])) { 
    $host = "localhost"; 
    $username = "root"; 
    $password = ""; 
    $database = ""; 
    $conn = mysqli_connect($host, $username, $password, $database); 

    if (mysqli_connect_errno($conn)) { 
     echo "Failed to connect to MySQL: " . mysqli_connect_error(); 
    } 

    $first_name = mysqli_real_escape_string($conn,$_POST['first_name']); 
    $last_name = mysqli_real_escape_string($conn,$_POST['last_name']); 
    $email = mysqli_real_escape_string($conn,$_POST['email']); 
    $password = mysqli_real_escape_string($conn,$_POST['password']); 
    $date = date("Y-m-d"); 

    $password = md5($password); 

    $sql = "INSERT INTO users (first_name, last_name, email, password, sign_up_date) VALUES ('$first_name', '$last_name', '$email', '$password', '$date')"; 

    if (!mysqli_query($conn, $sql)) { 
     die('Error: ' .mysqli_error($conn)); 
    } 

    echo "Entry added successfully"; 

    mysqli_close($conn); 
} 

這是sql和我得到的錯誤 - 當然缺少的表。

INSERT INTO users (first_name, last_name, email, password, sign_up_date) VALUES ('a', 'a', 'a', '0cc175b9c0f1b6a831c399e269772661', '2015-08-16') 

Answer 4

嘗試

if (!$conn) { 
    die('Connect Error (' . mysqli_connect_errno() . ') ' 
      . mysqli_connect_error()); 
} 

，以確保沒有連接問題是存在的。

關於

my register.php page is blank, with neither the success or error message

您需要啓用的error_reporting（在php.ini中）看到的錯誤。 在開發過程中至少啓用錯誤報告。

暫時把error_reporting(-1);在register.php開始

Answer 5

的錯誤是在這一行：

$database = "" 

您忘記;

而你需要設置數據庫名稱，那麼數據庫名可以」 t是空的。

$database = "Your_DB_Name";