这里我有一个基本的注册表单。
<form name="signUp" id="signUp" method="POST" action="insertUser.php">
<table>
<tr>
<td>Name</td>
<td><input type="text" name="signUpName" placeholder="Name"/></td>
</tr>
<tr>
<td>Email</td>
<td><input type="text" name="signUpEmail" placeholder="Email"/></td>
</tr>
<tr>
<td>Password</td>
<td><input type="password" name="signUpPassword" placeholder="password"/></td>
</tr>
<tr>
<td><input type="submit" name="submit" value="Go"/></td>
</tr>
</table>
</form>
它将字段数据发送到文件insertUser.php
。
<?php
include 'User.php';
if(isset($_POST['submit'])){
$user = new User();
$user->setUserName($_POST['signUpName']);
$user->setUserEmail($_POST['signUpEmail']);
$user->setUserPassword($_POST['signUpPassword']);
$user->userInsert();
}
?>
该文件创建名为 User
的类的对象,并将从表单接收的数据传递给该类的变量。 User
类的 userInsert
函数最终将数据插入数据库。
<?php
class User{
public $userName, $userEmail, $userPassword;
public function getUserName(){
return $this->userName;
}
public function setUserName($userName){
$this->userName = $userName;
}
public function getUserEmail(){
return $this->userEmail;
}
public function setUserEmail($userEmail){
$this->userEmail = $userEmail;
}
public function getUserPassword(){
return $this->userPassword;
}
public function setUserPassword($userPassword){
$this->userPassword = $userPassword;
}
public function userInsert(){
global $userName, $userEmail, $userPassword;
include 'db_connection.php';
$r = $db->prepare("INSERT INTO user(Username, Useremail, Userpassword) VALUES(:userName, :userEmail, :userPassword);");
$r->bindParam(':userName',$userName);
$r->bindParam(':userEmail',$userEmail);
$r->bindParam(':userPassword',$userPassword);
$r->execute();
header('Location: index.php?successful=1');
}
}
数据库连接
<?php
try{
$db = new PDO("mysql:host=localhost;dbname=basicchatapp","root","");
$db->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);
}
catch(Exception $e){
die("Error: ");
}
?>
现在的问题是,每次插入NULL
输入时。
搜索了很多其他答案,但没有一个解决方案适合我。获得提示将会有很大帮助。谢谢。
最佳答案
可能是您的 userInsert() 函数找不到变量值,因此在函数中传递这些参数,那么它应该类似于下面的代码
class User{
public $userName, $userEmail, $userPassword;
public function getUserName(){
return $this->userName;
}
public function setUserName($userName){
$this->userName = $userName;
}
public function getUserEmail(){
return $this->userEmail;
}
public function setUserEmail($userEmail){
$this->userEmail = $userEmail;
}
public function getUserPassword(){
return $this->userPassword;
}
public function setUserPassword($userPassword){
$this->userPassword = $userPassword;
}
public function userInsert($userName=null,$userEmail=null,$userPassword=null){
include 'db_connection.php';
$sql = "INSERT INTO user(Username, Useremail, Userpassword) VALUES($userName,$userEmail,$userPassword);";
if(mysqli_query($db,$sql) == TRUE){
header('Location: index.php?successful=1');
}
else{
header('Location: index.php?successful=0');
}
}
}
关于php - PDO准备语句将NULL值插入mysql数据库,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/43567782/