在课堂上找不到方法 [英] Method not found in class

问题描述

我正在使用登录功能，但是遇到了我无法弄清的错误.

I'm working on a login function but got an error that I can't figure out.

这是我的模型登录课程:

This is my Model Login class:

class Login {

    private $username;
    private $password;
    private $cxn;       //database object

    function __construct($username,$password)
    {
        //set data
        $this->setData($username, $password);
        //connect DB
        $this->connectToDB();
        // get Data 
    }

    function setData($username, $password)
    {
        $this->username = $username;
        $this->password = $password;
    }

    private function connectToDB()
    {
        include 'Database.php';
        $connect = '../include/connect.php';
        $this->cxn = new database($connect);  
    }

    function getData()
    {
        $query = "SELECT * FROM anvandare WHERE anvandarnamn = '$this->username' AND losenord ='$this->'password'";
        $sql = mysql_query($query);

        if(mysql_num_rows($sql)>0)
        {
            return true;
        }
        else
        {
            throw new Exception("Användarnamnet eller Lösenordet är fel. Försök igen.");
        } 
    }

    function close() 
    {
        $this->cxn->close(); //Here is the error it says "Method 'close' not found in class
    }
}

最后一个函数给出错误"在类中未找到方法'close'"，"在主题类中未找到引用的方法."

The last function gives error "Method 'close' not found in class", "Referenced method is not found in subject class."

这是我的数据库课程:

class Database {

    private $host;
    private $user;
    private $password;                  
    private $database;

   function __construct($filename)
   {       
       if(is_file($filename)) include $filename;
       else throw new exception("Error!");

       $this->host=$host;
       $this->user=$user;
       $this->password=$password;
       $this->database=$database;

       $this->connect();
    }

    private function connect()
    {
        //Connect to the server
        if(!mysql_connect($this->host, $this->user, $this->password))
        throw new exception("Error, not connected to the server.");

        //Select the database
        if(!mysql_select_db($this->database))
        throw new exception("Error, no database selected");             
    }

    function close()
    {
        mysql_close();
    }
}

路径是正确的，事实并非如此.可能是什么错误?

The pathways are correct so it's not it. What could be the error?

推荐答案

PhpStorm无法确定您的$this->cxn字段是什么类型.您可以通过简单的PHPDoc注释提供typehint来提供帮助:

PhpStorm cannot figure out what type your $this->cxn field is. You can help by providing typehint via simple PHPDoc comment:

/** @var Database */
private $cxn;       //database object

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