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What i am doing wrong here ?

whenever i try to insert data i got errors. How to solve this I want to insert data through prepare statement.

Fatal error: Uncaught exception 'PDOException' with message 'SQLSTATE[21S01]: Insert value list does not match column list: 1136 Column count doesn't match value count at row 1' in C:\xampp\htdocs\Authentication\request\register.php:16 Stack trace: #0 C:\xampp\htdocs\Authentication\request\register.php(16): PDOStatement->execute() #1 C:\xampp\htdocs\Authentication\request\register.php(48): submit(Array) #2 {main} thrown in C:\xampp\htdocs\Authentication\request\register.php on line 16
require 'db.php';

   function submit($data){
        $column = implode(",", array_keys($data));
        $values = "'".implode("','", $data)."'";

          global $db;
          $insert = $db->prepare("insert into user_data($column) values(?)");
          $insert -> bindParam(1,$values); 
        }catch(Exception $e){


  if(isset($_POST) && !empty($_POST)){

     $userName = filter_input(INPUT_POST, 'userName' ,FILTER_SANITIZE_STRING);
     $email = filter_input(INPUT_POST, 'email' ,FILTER_SANITIZE_STRING);
     $password = filter_input(INPUT_POST, 'password' ,FILTER_SANITIZE_STRING);
     $confirm = filter_input(INPUT_POST, 'confirm' ,FILTER_SANITIZE_STRING);

     if($userName == "" || $email == "" || $password == "" || $confirm == ""){
        echo '<span class="error">Empty Fields</span>';
     }elseif(strlen($userName) < 4){
        echo '<span class="error">Username must be greater than 4 characters</span>';
        echo '<span class="error">Invalid email address</span>'; 
     }elseif($password < 8){
        echo '<span class="error">Password must be more than 8 characters</span>';
     }elseif($password !== $confirm){
        echo '<span class="error">Password not match</span>';
        $cost = [md5($userName)."12"];
        $password = password_hash($password,PASSWORD_DEFAULT,$cost);
        $data = [
            'userName' => $userName,
            'email'    => $email,
            'password' => $password




1 Answer

Henrique Voni
Henrique Voni
12,296 Points

Please check if your table in database has all the fields you are trying to save using the INSERT query. Your fields must be in the same order as you insert also.