PHP Classes

How to Implement a PHP Stock Management System to Help Commerce Businesses to Decide When They Need to Purchase More Products That Are Running Out Of Stock Using the Package Observe: Control product stocks with the observer pattern

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Last Updated Ratings Unique User Downloads Download Rankings
2024-07-06 (2 months ago) RSS 2.0 feedNot yet rated by the usersTotal: 31 All time: 11,094 This week: 39Up
Version License PHP version Categories
observe 1.0MIT/X Consortium ...8E-Commerce, Design Patterns, PHP 8
Description 

Author

Rodrigo Faustino

This package can show how to control product stocks with the design observer pattern.

It provides several interface definitions with functions that register observer objects and call those objects when an event occurs.

The email observer interface sends an email message when a product quantity is low in stock.

The stock control request observer interface adds a product to the list of purchases when the stock control is updated.

The stock control subject class uses the observer interfaces to notify when all observer classes run out of stock.

Innovation Award
PHP Programming Innovation award nominee
July 2024
Number 8		 The observer design pattern is useful for projects that manage objects affected by the changes in other objects.

For instance, in an e-commerce system, when a product is purchased, the product quantities in stock are updated.

When the product quantities are too low, the people responsible for buying more stock need to be notified so they can buy a new batch of products to be able to sell more products before the quantities in stock reach zero and the customers need to wait a long time to get the products.

This package demonstrates how developers can use the observer design pattern to automate the management of products to sell by a commerce business.

Manuel Lemos
Picture of Rodrigo Faustino
  Performance   Level  
Name: Rodrigo Faustino <contact>
Classes: 25 packages by
Country: Brazil Brazil
Age: 41
All time rank: 2515174 in Brazil Brazil
Week rank: 7 Up1 in Brazil Brazil Up

Level 1 Star

 Innovation award
Innovation award
Nominee: 17x

Winner: 2x

Example

<?php

require 'vendor/autoload.php';
 use Estoque\App\ControleEstoqueSubject;
 use Estoque\App\ControleRequisicoesCompraObserver;
 use Estoque\App\EmailObserver;

$controleEstoqueSubject = new ControleEstoqueSubject();
 
$controleRequisicaoCompraObserver = new ControleRequisicoesCompraObserver();
$emailObserver = new EmailObserver();

$controleEstoqueSubject->adicionarObserver($controleRequisicaoCompraObserver);
//$controleEstoqueSubject->adicionarObserver($emailObserver);

$controleEstoqueSubject->notificarObservers(13);

  Files folder image Files (8)  
File Role Description
Files folder imagesrc (5 files)
Accessible without login Plain text file composer.json Data Auxiliary data
Accessible without login Plain text file composer.lock Data Auxiliary data
Accessible without login Plain text file index.php Example Example script

  Files folder image Files (8)  /  src  
File Role Description
  Plain text file ControleEstoqueSubject.php Class Class to control product stocks by observing the quantities of product that is in stock and updates the product purchase requests
  Plain text file ControleRequisicoesCompraObserver.php Class Class that observes the request for purchasing products that are running out of stock
  Plain text file EmailObserver.php Class Class that observes the stock and sends an email message when the stock is low
  Plain text file Observer.php Class Observer interface
  Plain text file Subject.php Class Subject interface

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