CODEWITHSUNDEEP
phpoopclass
Matthew Brotzman
Matthew Brotzman

Reputation: 105

Use a Class in another Class PHP, w/o include

I basically have 3 important files right now. I want to use a function from the DB class in the LOGIN class. These are my files. I tried including the DB class but then I would be declaring it twice, which you cant do.

---- index.php ---- -- Which displays the content --

<?php
     session_start();


include './libs/database.php';

$mysql = new Database();

include './libs/login.php';

$login = new Login();

$mysql->connect("---", "user", "pass"); 
$mysql->usedatabase("db"); 

    ?>

<!DOCTYPE html>
    <html>
        <body>
            <div id="wrapper">

                             CONTENT GOES HERE

            </div>          
        </body>

    </html>
---


---login.php ---

    class Login{

        public function isLoggedIn(){

            if(isset($_SESSION['user_id'])){

                return true;

            }else{
                return false;
            }
        }


        public function UserLogin($email,$password){
            // login function
                        $DB->selectwhere(...);
        }

        public function securePassword($pass){

            $pass =  md5($pass);

                return $pass;
        }
    }

---



--- database.php ---

 class Database{


       //Database Functions


 }

Upvotes: 0

Views: 543

Answers (4)

msEmmaMays
msEmmaMays

Reputation: 1063

Make the securePassword() function in Login a static function so you can call it without an instance of the Login class.

Login::securePassword()

Upvotes: 1

mcont
mcont

Reputation: 1933

Read the PHP.net documentation about the keyword extends: http://www.php.net/manual/en/language.oop5.basic.php#language.oop5.basic.extends

A class can inherit the methods and properties of another class by using the keyword >extends in the class declaration.

So your login class will be

class Login extends Database{

    public function isLoggedIn(){

        if(isset($_SESSION['user_id'])) {
            return true;
        }
        else {
            return false;
        }
    }


    public function UserLogin($email,$password){
        parent::login();
    }

    public function securePassword($pass){
        $pass =  md5($pass);
        return $pass;
    }
}

You can access a property or method of the Database class using

parent::var_name
parent::method()

Upvotes: 0

Stephen305
Stephen305

Reputation: 1097

Move your Database class to file Database.php. At the top of index.php, use require_once('Database.php'); to include the Database class. Then change UserLogin() function to this:

    public function UserLogin($email,$password){
        // login function
                    $DB = new Database;
                    $DB->selectwhere(...);
    }

Upvotes: 0

Filipe
Filipe

Reputation: 45

Look into PHP's "Autoload" capabilities. You can actually look up classes on-demand ONLY when they don't already exist in the heap.

Upvotes: 2

Related Questions