PHP，MySQL錯誤：列計數與第1行的值計數不匹配

Question

我做了一個註冊碼電子郵件，用戶，傳遞，當我點擊「zr」在數據庫中插入此信息，但我得到以下錯誤：

MySQL error: Column count doesn’t match value count at row 1 

代碼：

include ('config.php'); 
include('login_css.php'); 
$error = ""; 
if (isset($_POST['zr'])){ 
$date = date("m d Y"); 
$user_name = strip_tags($_POST['user']); 
$user_pass = strip_tags($_POST['pass']); 
$user_email = strip_tags($_POST['email']); 
$empty = strip_tags($_POST['none']); 
$empty.= strip_tags($_POST['none']); 
$empty.= strip_tags($_POST['none']); 
$day = strip_tags($_POST['day']); 
$month = strip_tags($_POST['month']); 
$year = strip_tags($_POST['year']); 
$dob = "$day/$month/$year"; 

if ($user_name == "") { 
    $error = "Firstname cannot be left empty."; 
    echo $error; 
} 
else if ($user_pass == "") { 
    $error = "Lastname cannot be left empty."; 
    echo $error; 
} 
else if ($user_email == "") { 
    $error = "Email cannot be left empty."; 
    echo $error; 
} 

//Check the username doesn't already exist 
$check_username = mysql_query("SELECT yser FROM users WHERE username='$user_name'"); 
$numrows_username = mysql_num_rows($check_username); 
if ($numrows_username != 0) { 
    $error = 'That username has already been registered.'; 
    echo $error; 
} 
else 
{ 
    $check_email = mysql_query("SELECT email FROM users WHERE email='$user_email'"); 
$numrows_email = mysql_num_rows($check_email); 
if ($numrows_email != 0) { 
    $error = 'That email has already been registered.'; 
    echo $error; 
} 
else 
{ 
//Register the user 
$register = mysql_query("INSERT INTO users(user,pass,email) VALUES('','$user_name','$user_pass','$user_email','$date')") or die(mysql_error()); 
die('Registered successfully!'); 
} 
} 
} 

?> 

<!-- Form Mixin--> 
<!-- Input Mixin--> 
<!-- Button Mixin--> 
<!-- Pen Title--> 
<div class="pen-title"> 
<title>WebooHub - Join</title> 
    <h1>WebooHub - Join</h1> 
</div> 
<!-- Form Module--> 
<div class="module form-module"> 
    <div class="toggle"><i class="fa fa-times fa-pencil"></i> 
    </div> 
    <div class="form"> 
    <h2>Create Your Account</h2> 
    <form action="u_register" method="POST"> 



     <button>Join Now</button> 
    </form> 
    </div> 
    <div class="cta"><a href="login.php">Login?</a></div> 
</div><strong></strong> 

Answer 1

錯誤消息告訴你到底出了什麼問題。看看你的INSERT聲明：

INSERT INTO users(user,pass,email) VALUES('','$user_name','$user_pass','$user_email','$date') 

您指定3列，但提供5個值。

INSERT INTO users(user,pass,email) VALUES('$user_name','$user_pass','$user_email') 

或指定的5列，你要插入值：

INSERT INTO users(someColumn,user,pass,email,someOtherColumn) VALUES('','$user_name','$user_pass','$user_email','$date') 

---

而且，和這

要麼你要插入只提供3個值很重要，你的代碼是對SQL注入開放。這意味着你盲目地執行用戶在數據庫查詢中發送給你的任何代碼。請看看this以及this。使用查詢參數在準備語句，以便您將用戶輸入視爲值而不是代碼。

---

此外，你是在純文本存儲用戶密碼。這是嚴重不負責任的密碼處理。請hash user passwords correctly。用戶密碼應該隱藏在單向散列之後，並且從不可以檢索到，即使您不是系統所有者。

Answer 2

退房列VS值：

你有3列和5倍的值。這些需要平等。

$register = mysql_query("INSERT INTO users(user,pass,email) VALUES('','$user_name','$user_pass','$user_email','$date')") or die(mysql_error()); 
die('Registered successfully!'); 

也強烈建議您使用mysqli