CODEWITHSUNDEEP
phpmysql
gorkhali1234
gorkhali1234

Reputation: 312

Error Creating record in MySQL: "Integrity constraint violation"

I am trying to create a registration file and I used this code for creating it:

<?php
require 'connection.php';

if (isset($_POST['submit'])) {
    $res= $conn->prepare("Insert into user (Name,Email,user_name,password)Values (:name,:email,:user,md5(:pass))");
    $res->bindParam(':name', $name);
    $res->bindParam(':email', $email);
    $res->bindParam(':user', $user);
    $res->bindParam(':pass', $pass);

    $name = $_POST['name'];
    $email = $_POST['email'];
    $username =$_POST['user'];
    $password = $_POST['pass'];

    $res->execute();

    if ($res==TRUE) {
        echo 'Registered successfully';
    } else {
        echo 'There was some error.';
    }      
}    
?>

But I get this error:

Integrity constraint violation: 1048 Column 'user_name' cannot be null'

Here is the HTML part of my code.

 <body>
        <form action="Registration.php" method="post" >
            Name:<br>
            <input type="text" name="name"/><br>
            Email:<br>
            <input type="text" name="email"  /><br>
            Username:<br>
            <input type="text" name="user" /><br>
            Password:<br>
            <input type="password" name="pass" /><br>                
            <input type="submit" name="submit" value="SignUp!"/>
        </form>       
    </body>

Upvotes: 1

Views: 48

Answers (1)

Kaptkaos
Kaptkaos

Reputation: 34

Mark Baker's comment is correct and highlights the core problem. You are binding the username to a variable $username, but your SQL statement is looking for $user. Because the $user variable is not set, it is null and violates your database constraints when the SQL statement is executed.

Adjust your code to 

$user =$_POST['user'];

and it should work

Upvotes: 1

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