如何在 PHP OOP 中设置通知消息
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【中文标题】如何在 PHP OOP 中设置通知消息【英文标题】：How to setup Notification Messages in PHP OOP 【发布时间】：2018-03-01 10:08:52 【问题描述】：我正在使用 php OOP 开发 CMS。在这个项目中，我添加了一个功能，网站管理员可以添加和管理其他管理员。为了添加管理员，我创建了这个名为 admin_new.php 的页面，如下所示：
<?php
if (isset($_POST['submit']))
$username = $_POST['uname'];
$email = $_POST['email'];
$password = $_POST['pass'];
$groups = $_POST['groups'];
if($groups == "Main Admin")
$level = 1;
else if($groups == "Administrator")
$level = 2;
else if($groups == "Content Creator")
$level = 3;
else if($groups == "Social Media Manager")
$level = 4;
else
$level = 5;
if (filter_var($email, FILTER_VALIDATE_EMAIL) === false)
$notice['email_validation'] = "The email that you have entered is not a valid one";
else
$registration = new Register();
$notices = $registration->CheckUname($username,$email,$password,$groups,$level)->getNotices();
?>
<div class="content-wrapper">
<section class="content-header">
<h1>
Add New Admin
<small>You can add new admin here</small>
</h1>
<ol class="breadcrumb">
<li class="active">addnewadmin.php</li>
</ol>
</section>
<section class="content">
<div class="row">
<div class="col-md-6">
<div class="box box-primary">
<div class="box-header with-border">
<h3 class="box-title">Required Information</h3>
</div>
<?php
if(isset($notice['email_validation']))
echo "
<div class='alert alert-danger'>
<strong>Hey!</strong> ".$notice['email_validation'].".
</div>
";
if(isset($notice['username_exists']))
echo "
<div class='alert alert-danger'>
<strong>Hey!</strong> ".$notice['username_exists'].".
</div>
";
if(isset($notice['email_exists']))
echo "
<div class='alert alert-danger'>
<strong>Hey!</strong> ".$notice['email_exists'].".
</div>
";
if(isset($notice['success_message']))
echo "
<div class='alert alert-success'>
<strong>Hey!</strong> ".$notice['success_message'].".
</div>
";
?>
<form role="form" method="POST" action="">
<div class="box-body">
<div class="form-group">
<label>User name</label>
<input type="text" class="form-control" placeholder="Enter username" name="uname" required>
</div>
<div class="form-group">
<label for="exampleInputEmail1">Email address</label>
<input type="email" class="form-control" id="exampleInputEmail1" placeholder="Enter email" name="email" required>
</div>
<div class="form-group">
<label for="exampleInputPassword1">Temporary password</label>
<input type="password" class="form-control" id="exampleInputPassword1" placeholder="Enter password" name="pass" required>
</div>
<div class="form-group">
<label>Group admin</label>
<select class="form-control" name="groups">
<option value="Main Admin">Main Admin</option>
<option value="Administrator">Administrator</option>
<option value="Content Creator">Content Creator</option>
<option value="Social Media Manager">Social Media Manager</option>
<option value="Analyst">Analyst</option>
</select>
</div>
</div>
<div class="box-footer">
Visit <a href="https://zite.pouyavagefi.com/documentation/types.php">admin types</a> documentation to know the differences between each admin.
</div>
<div class="box-footer">
<button name="submit" type="submit" class="btn btn-primary">Submit</button>
</div>
</form>
</div>
</div>
</div>
</section>
</div>
我在这个文件中使用的类叫做Register.class.php，包含这个：
<?php
class Register
protected $notice = array();
private $db;
public function __construct()
$this->db = new Connection();
$this->db = $this->db->dbConnect();
public function CheckUname($username,$email,$password,$groups,$level)
if(!empty($username)&&!empty($email)&&!empty($password)&&!empty($groups)&&!empty($level))
$chk1 = $this->db->prepare("SELECT username FROM admins WHERE user_name= ?");
$chk1->bindParam(1,$username);
$chk1->execute();
if($chk1->rowCount() == 1)
$notice['username_exists'] = "Try different username";
return $notice;
else
$chk2 = $this->db->prepare("SELECT email FROM admins WHERE email_address= ?");
$chk2->bindParam(1,$email);
$chk2->execute();
if($chk2->rowCount() == 1)
$notice['email_exists'] = "The email address that you have entered is already exists in database";
return $notice;
else
$this->NewAdmin($username,$email,$password,$groups,$level);
$notice['success_message'] = "New admin was successfully added";
return $notice;
public function NewAdmin($username,$email,$password,$groups,$level)
if(!empty($username)&&!empty($email)&&!empty($password)&&!empty($groups)&&!empty($level))
$reg = $this->db->prepare("INSERT INTO admins (user_name, email_address, password_hash, group_admin, date_joined, admin_level) VALUES ( ?, ?, ?, ?, NOW(), ?)");
$reg->bindParam(1,$username);
$reg->bindParam(2,$email);
$reg->bindParam(3,$password);
$reg->bindParam(4,$groups);
$reg->bindParam(5,$level);
$reg->execute();
public function getNotices()
return $this->notice;
?>
基本上我要做的就是确保：
1- 数据库中不存在用户名
2- 用户没有输入数据库中已经存在的电子邮件
3- 如果一切顺利，则在表格中添加一个新行
当我运行它并用虚拟信息填写表单以检查 notices 如何出现时，我收到以下错误消息：
致命错误：未捕获的错误：调用数组中的成员函数 getNotices() admin_new.php:22
堆栈跟踪：addnewadmin.php(20): require_once()
1 main 在第 22 行的 admin_new.php 中抛出
admins_new.php 的第 22 行是这样的：
$notices = $registration->CheckUname($username,$email,$password,$groups,$level)->getNotices();
我该如何解决这个问题？
【问题讨论】：
【参考方案1】：问题在于概念......什么是什么
$registration -> 类的实例注册
CheckUname($username,$email,$password,$groups,$level) -> 返回数组的函数 $notice
基本上你的方法
CheckUname()返回$notices然后你调用 这个数组方法getNotices()有问题..
如果你想获得$notices，你必须在$registration实例上调用公共方法。
$registration->CheckUname($username,$email,$password,$groups,$level);
$notices = $registration->getNotices()
或
$notices = $registration->CheckUname($username,$email,$password,$groups,$level);
【讨论】：
很好的答案，但现在的问题是，它不返回 $notices 你可以在这里发布一些日志，还是有一些逻辑错误？ 基本没有错误出现，逻辑完美。但它只是不显示 $notice 消息 应该是错字...在 admin_new.php 你设置一次 $notice 另一次 $notices并且在错误打印中你有 if(isset($notice['username_exists']))... Rewrite $notices on just $notice 我把所有的notices都改成了notice，但是还是没有解决问题:(以上是关于如何在 PHP OOP 中设置通知消息的主要内容，如果未能解决你的问题，请参考以下文章
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