使用oop在php中注册表单
我只想做一个注册页面，但我被这个错误卡住了- 警告：从中的空值创建默认对象 第25行的C:\wamp\www\2209login\register.php* 而这个-> 致命错误：在中调用未定义的方法stdClass:：create（） 第30行的C:\wamp\www\2209login\register.php database.php使用oop在php中注册表单,php,sql,Php,Sql,我只想做一个注册页面，但我被这个错误卡住了- 警告：从中的空值创建默认对象 第25行的C:\wamp\www\2209login\register.php* 而这个-> 致命错误：在中调用未定义的方法stdClass:：create（） 第30行的C:\wamp\www\2209login\register.php database.php <?php // used to get mysql database connection class Database{ // spec
<?php
// used to get mysql database connection
class Database{
// specify your own database credentials
private $host = "localhost";
private $db_name = "ooplogin";
private $username = "root";
private $password = "";
public $conn;
// get the database connection
public function getConnection(){
$this->conn = null;
try{
$this->conn = new PDO("mysql:host=" . $this->host . ";dbname=" . $this->db_name, $this->username, $this->password);
echo "connected";
}catch(PDOException $exception){
echo "Connection error: " . $exception->getMessage();
}
return $this->conn;
}
}
?>
<?php
// 'user' object
class User{
// database connection and table name
private $conn;
private $table_name = "users";
// object properties
public $id;
public $firstname;
public $lastname;
public $email;
// constructor
public function __construct($db){
$this->conn = $db;
// create new user record
function create(){
$query = "INSERT INTO
" . $this->table_name . "
SET
firstname = :firstname,
lastname = :lastname,
email = :email";
// prepare the query
$stmt = $this->conn->prepare($query);
// sanitize
$this->firstname=htmlspecialchars(strip_tags($this->firstname));
$this->lastname=htmlspecialchars(strip_tags($this->lastname));
$this->email=htmlspecialchars(strip_tags($this->email));
// bind the values
$stmt->bindParam(':firstname', $this->firstname);
$stmt->bindParam(':lastname', $this->lastname);
$stmt->bindParam(':email', $this->email);
// execute the query, also check if query was successful
if($stmt->execute()){
return true;
}else{
$this->showError($stmt);
return false;
}
}
}
}
<?php
// core configuration
//include_once "config/core.php";
// set page title
$page_title = "Register";
// include login checker
//include_once "login_checker.php";
// include classes
include_once 'config/database.php';
include_once 'objects/user.php';
//include_once "libs/php/utils.php";
// include page header HTML
//include_once "layout_head.php";
if($_POST){
// get database connection
$database = new Database();
$db = $database->getConnection();
$user->firstname=$_POST['firstname'];
$user->lastname=$_POST['lastname'];
$user->email=$_POST['email'];
// create the user
if($user->create()){
echo "<div class='alert alert-info'>";
echo "Successfully registered. <a href='{$home_url}login'>Please login</a>.";
echo "</div>";
}else{
echo "<div class='alert alert-danger' role='alert'>Unable to register. Please try again.</div>";
}
}
?>
<form action='register.php' method='post' id='register'>
<table class='table table-responsive'>
<tr>
<td class='width-30-percent'>Firstname</td>
<td><input type='text' name='firstname' class='form-control' required value="<?php echo isset($_POST['firstname']) ? htmlspecialchars($_POST['firstname'], ENT_QUOTES) : ""; ?>" /></td>
</tr>
<tr>
<td>Lastname</td>
<td><input type='text' name='lastname' class='form-control' required value="<?php echo isset($_POST['lastname']) ? htmlspecialchars($_POST['lastname'], ENT_QUOTES) : ""; ?>" /></td>
</tr>
<tr>
<td>Email</td>
<td><input type='email' name='email' class='form-control' required value="<?php echo isset($_POST['email']) ? htmlspecialchars($_POST['email'], ENT_QUOTES) : ""; ?>" /></td>
</tr>
<td></td>
<td>
<button type="submit" class="btn btn-primary">
<span class="glyphicon glyphicon-plus"></span> Register
</button>
</td>
</tr>
</table>
</form>
<?php
// used to get mysql database connection
class Database{
// specify your own database credentials
private $host = "localhost";
private $db_name = "ooplogin";
private $username = "root";
private $password = "";
public $conn;
// get the database connection
public function getConnection(){
$this->conn = null;
try{
$this->conn = new PDO("mysql:host=" . $this->host . ";dbname=" . $this->db_name, $this->username, $this->password);
echo "connected";
}catch(PDOException $exception){
echo "Connection error: " . $exception->getMessage();
}
return $this->conn;
}
}
?>
<?php
// 'user' object
class User{
// database connection and table name
private $conn;
private $table_name = "users";
// object properties
public $id;
public $firstname;
public $lastname;
public $email;
// constructor
public function __construct($db){
$this->conn = $db;
// create new user record
function create(){
$query = "INSERT INTO
" . $this->table_name . "
SET
firstname = :firstname,
lastname = :lastname,
email = :email";
// prepare the query
$stmt = $this->conn->prepare($query);
// sanitize
$this->firstname=htmlspecialchars(strip_tags($this->firstname));
$this->lastname=htmlspecialchars(strip_tags($this->lastname));
$this->email=htmlspecialchars(strip_tags($this->email));
// bind the values
$stmt->bindParam(':firstname', $this->firstname);
$stmt->bindParam(':lastname', $this->lastname);
$stmt->bindParam(':email', $this->email);
// execute the query, also check if query was successful
if($stmt->execute()){
return true;
}else{
$this->showError($stmt);
return false;
}
}
}
}
<?php
// core configuration
//include_once "config/core.php";
// set page title
$page_title = "Register";
// include login checker
//include_once "login_checker.php";
// include classes
include_once 'config/database.php';
include_once 'objects/user.php';
//include_once "libs/php/utils.php";
// include page header HTML
//include_once "layout_head.php";
if($_POST){
// get database connection
$database = new Database();
$db = $database->getConnection();
$user->firstname=$_POST['firstname'];
$user->lastname=$_POST['lastname'];
$user->email=$_POST['email'];
// create the user
if($user->create()){
echo "<div class='alert alert-info'>";
echo "Successfully registered. <a href='{$home_url}login'>Please login</a>.";
echo "</div>";
}else{
echo "<div class='alert alert-danger' role='alert'>Unable to register. Please try again.</div>";
}
}
?>
<form action='register.php' method='post' id='register'>
<table class='table table-responsive'>
<tr>
<td class='width-30-percent'>Firstname</td>
<td><input type='text' name='firstname' class='form-control' required value="<?php echo isset($_POST['firstname']) ? htmlspecialchars($_POST['firstname'], ENT_QUOTES) : ""; ?>" /></td>
</tr>
<tr>
<td>Lastname</td>
<td><input type='text' name='lastname' class='form-control' required value="<?php echo isset($_POST['lastname']) ? htmlspecialchars($_POST['lastname'], ENT_QUOTES) : ""; ?>" /></td>
</tr>
<tr>
<td>Email</td>
<td><input type='email' name='email' class='form-control' required value="<?php echo isset($_POST['email']) ? htmlspecialchars($_POST['email'], ENT_QUOTES) : ""; ?>" /></td>
</tr>
<td></td>
<td>
<button type="submit" class="btn btn-primary">
<span class="glyphicon glyphicon-plus"></span> Register
</button>
</td>
</tr>
</table>
</form>
您需要分离\u构造
和创建
方法。在当前代码中，创建方法位于构造函数内部，请将用户类更改为：
// 'user' object
class User{
// database connection and table name
private $conn;
private $table_name = "users";
// object properties
public $id;
public $firstname;
public $lastname;
public $email;
// constructor
public function __construct($db){
$this->conn = $db;
}
// create new user record
public function create(){
$query = "INSERT INTO
" . $this->table_name . "
SET
firstname = :firstname,
lastname = :lastname,
email = :email";
// prepare the query
$stmt = $this->conn->prepare($query);
// sanitize
$this->firstname=htmlspecialchars(strip_tags($this->firstname));
$this->lastname=htmlspecialchars(strip_tags($this->lastname));
$this->email=htmlspecialchars(strip_tags($this->email));
// bind the values
$stmt->bindParam(':firstname', $this->firstname);
$stmt->bindParam(':lastname', $this->lastname);
$stmt->bindParam(':email', $this->email);
// execute the query, also check if query was successful
if($stmt->execute()){
return true;
}else{
$this->showError($stmt);
return false;
}
}
}
$user=new user（）
在您的注册表中丢失。phpthanks Masivuye先生第一个错误已解决，但第二个错误->致命错误：调用未定义的方法user:：create（）是否使用任何框架？不，我只使用notepade++，如果任何一个好的，请建议，解释您的代码为何工作以及如何工作，以便答案和问题对经验较少的开发人员有价值