Question

我正在尝试在http://webdevelopingcat.com/creating-a-registration-page-with-php-and-pdo/上关注本教程，但稍微更改一下（只需删除地址）。但是在我自己纠正了一些错误后，我完全陷入了这个错误。

我的HTML和PHP代码如下;

<?php
  if ( empty( $_POST ) ) {
?>

<h1>PCReviews - Registration</h1>
<form name="registration" action="registration" method="POST">
  <label for 'username'>Username: </label>
  <input type="text" name="username"/>
  <label for 'password'>Password: </label>
  <input type="password" name="password"/>
  <label for 'first_name'>First name: </label>
  <input type="text" name="first_name"/>
  <label for 'surname'>Surname: </label>
  <input type="text" name="surname"/>
  <label for 'email'>Email: </label>
  <input type="text" name="email"/>
  <br/>
  <button type="submit">Register!</button>
 </form>

<?php
} else {$conn = new PDO("mysql:host=localhost;dbname=XXXX",'XXXX','XXXXX');
  print_r ( '<p>Registration Succesfull!</p>' );

$form = $_POST;
$username = $form[ 'username' ];
$password = $form[ 'password' ];
$first_name = $form[ 'first_name' ];
$surname = $form[ 'surname' ];
$email = $form[ 'email' ];
$sql = "INSERT INTO UserAccounts ( username, password, first_name, surname, email ) VALUES ( :username, :password, :first_Name, :surname, :email )";

$query = $conn->prepare( $sql );
$query->execute( array( ':username'=>$username, ':password'=>$password, ':first_name'=>$first_name, ':surname'=>$surname,':email'=>$email ) );

$result = $query->execute( array( ':username'=>$username, ':password'=>$password, ':first_name'=>$first_name, ':surname'=>$surname, ':email'=>$email ) );

if ( $result ){
  echo "<p>Thank you. You have been registered</p>";
} else {
  echo "<p>Sorry, there has been a problem inserting your details..</p>";
}
}


?>

但是我收到如下错误;

警告：PDOStatement :: execute（）：SQLSTATE [HY093]：参数号无效：参数未在第34行的/home/4328054/public_html/registration.php中定义
警告：PDOStatement :: execute（）：SQLSTATE [HY093]：参数号无效：参数未在第36行的/home/4328054/public_html/registration.php中定义

谢谢：）

警告：PDOStatement :: execute（）：SQLSTATE [HY093]：参数号无效：未定义参数

0 个答案: