alexsoyes

#!/bin/bash
set -e

# @explain this script is run by a cronjob every week
### “At 04:00 on Saturday.”
### 0 4 * * 6 /opt/backup-owncloud.sh > /home/alex/backup-owncloud.log 2>&1

# @vars defined
MAX_BACKUP_FILES=52 # keep my backup files during one year

alexsoyes

#!/bin/bash
set -e

# @explain this script is run by a cronjob every week
### “At 04:00 on Friday.”
### 0 4 * * 5 /opt/clamscan.sh > /home/alex/clamav.log 2>&1

# @vars defined
MAX_FILE_SIZE=128M # do not check files with size higher
DIRECTORY_TO_SCAN=/home/web/html/owncloud/

alexsoyes

<?php
/**
 *  Open/Closed Principle in PHP
 */

interface NameableInterface {
    public function theName(): void;
}

class User implements NameableInterface

alexsoyes

<?php
/**
 * Open/Closed principle in PHP (not working)
 */

class User
{
    public $name;
    public $firstname;

alexsoyes

<?php
/**
*** Single Responsibility Principle in PHP (not working)
**/

class UserService 
{
	public function updateFromAPI( User $user): User
	{
		// ...	

alexsoyes

<?php
/**
 * Liskov’s Substitution Principle (LSP) in PHP
 */

abstract class CMS
{
    abstract public function findArticles(int $limit = 10): array;

    /**

alexsoyes

<?php
/**
 * Interface Segregation Principle (ISP) in PHP
 * 
 * We have 2 dedicated Interfaces for 2 different needs.
 */

interface EntityInterface
{
    public function getId(): int;

alexsoyes

<?php
/**
 * Interface Segregation Principle (ISP) in PHP (not working)
 */

// ❌ We have only 1 interface for 2 different needs.
interface EntityInterface
{
    public function getId(): int;
    public function getName(): string;

alexsoyes

<?php
/**
 * Dependency Inversion Principle (DIP) in PHP (not working)
 */

class PayPal
{
	public function pay(int $amount): void
	{
		echo "Discussing with PayPal...\n";

alexsoyes

<?php
/**
 * Dependency Inversion Principle (DIP) in PHP
 */

interface PaymentInterface
{
    public function pay(int $amount): void;
}