README

Array Session

This package is a basic implementation of SessionInterface

Installation

You can install this package through Composer:

composer require session-interop/utils.arraysession

The packages adheres to the SemVer specification, and there will be full backward compatibility between minor versions.

Available

SessionArray.

The implementation of SessionInterface.

Methods

__construct(&$array, $prefix = "")

Construct the object. The object will use $array to store element. It use a reference on $array, so $array will be modified when you use set($key)and remove($key). If prefix is given, it will automatically prefix all $key.

has($key)

Verify is the key $key exists into the array injected at the object construction. Throw an exception if the key is not a string. if the associated value is null, the method return true.

get($key)

Get the value associated with $key. Throw an exception if no key are found or if the key is not a string

set($key, $val)

Set the value $val at the key $key. Throw an exception if the key is not a string.

remove($key)

Destroy the element at $key

SessionException.

Exception used on error. Throw an exception if the key is not a string

Usage

Writing an user service that use the session interface:

UserService.php

namespace Usage;
use Interop\Session\SessionInterface;
class UserService {
      public function isConnected(SessionInterface $session) {
          if ($session->has("userId")) {
	     	   return true;
	        }
	       return false;
      }
      public function login(SessionInterface $session, $userId) {
        if ($this->isConnected($session)) {
          return false;
  	    }
  	    $session->set("userId", $userId);
  	    return true;
      }
      public function logoff(SessionInterface $session) {
        if ($this->isConnected($session)) {
	     	     $session->remove("userId");
		           return true;
	       }
	      return false;
      }
}

Use the implementation:

Index.php

use Interop\Session\Utils\ArraySession\ArraySession;
use Usage\UserService;
require_once("vendor/autoload.php");

session_start();

$userId = 1;
$userService = new UserService();
$session = new ArraySession($_SESSION, "myprefix");

// Check if the user is connected

if ($userService->isConnected($session)) {
  // logoff the user
  $userService->logoff($session);
}
else {
  // login the user
  $userService->login($session, $userId);
}