Php
/
Create Framework
- 1 Basics 5
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Quotes S
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Constants S
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Control structures S
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Reference S
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Number systems S
- 2 Variables 4
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Definition S
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Variable variable S
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Exists S
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Type casting S
- 3 Operators 5
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Aritmetic S
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Bitwise S
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String S
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Comparison S
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Logical S
- 4 Function 4
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Definition S
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Anonymous S
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Reference S
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Variable arguments S
- 5 Array 7
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Basics S
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Operations S
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Create S
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Search S
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Modify S
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Sort S
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Storage S
- 6 String 9
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Basics
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Compare
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Search
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Replace
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Format
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Regexp
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Parse
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Formating
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Json
- 7 Streams 6
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File open
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Read file
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Read csv
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File contents
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Context
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Ob_start
- 8 Oop 6
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Object instantiation S
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Class constructor
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Interfaces, abstract
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Resource visibility
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Class constants
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Namespaces
- 9 Features 9
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Autoload
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Class reflection
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Magic methods
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Exceptions S
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Late static binding
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Type hinting
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SPL
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PHPUNIT
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PHAR
- 10 Versions 2
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Php7.4 S
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Php8.0 S
- 11 Http 4
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Headers
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File Uploads
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Cookies
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Sessions
- 12 Design Patterns 4
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Singleton Pattern S
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Observer Pattern
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Strategy Pattern
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Registry
- 13 Modern Php 8
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Composer S
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Slim Framework
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Autoloader
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Package
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Releases
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Generators
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Dependency Injection
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Middleware
- 14 Create Framework 7
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App
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Http Foundation
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Front Controller
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Routing
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Render Controller
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Resolver
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SoC
- 15 Frameworks 4
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Symfony v5
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Laravel v8
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Laminas v3
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Codeigniter v4
- 16 Composer 5
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Guzzle
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Carbon
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Faker
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Math
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Requests
- 17 Symfony 6
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Routes S
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Annotations
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Flex
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Controllers
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Doctrine
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Templating
R
Q
App
Let's start with the simplest web application we can think of in PHP.
/**
* HTTP Framework (Request/Response) - index.php
*
* php -S localhost:8000
* http://localhost/index.php?name=John
* Hello John
*/
ini_set("display_errors", 1);
$name = $_GET['name'];
printf("Hello %s", $name);
Warning
Fixing the undefined php warning.
/**
* Fix Warning - index2.php
*
* php -S localhost:8000
* http://localhost/index.php
* Warning: Undefined array key "name"
*
* http://localhost:8000/index2.php?name=John
* Hello John
* http://localhost:8000/index2.php
* Hello World
*/
ini_set("display_errors", 1);
$name = $_GET['name'] ?? "Wolrd"; // Fix Warning
printf("Hello %s", $name);
XSS
Fixing XSS vulnerability - Cross Site Scripting
/**
* Fix XSS - index3.php
*
* php -S localhost:8000
* http://localhost:8000/index2.php?name=<script>alert('Hack!');</script>
* XSS vulernambility
* http://localhost:8000/index3.php?name=<script>alert('Hack!');</script>
* Hello <script>alert('Hack!');</script>
*/
ini_set("display_errors", 1);
$name = $_GET['name'] ?? "World";
header('Content-Type: text/html; charset=utf-8');
printf("Hello %s", htmlspecialchars($name, ENT_QUOTES, 'UTF-8'));
Testing
This simple code is not that simple anymore and is hard to test.T
/**
* test.php - unit tests
*
* cd ../test/framework/custom/
* composer require --dev phpunit/phpunit
*
* vendor/bin/phpunit test.php
* OK (1 test, 1 assertion)
*
*/
require __DIR__ . "/vendor/autoload.php";
use PHPUnit\Framework\TestCase;
final class Test extends TestCase
{
public function test_Hello()
{
$_GET['name'] = "Fabian";
ob_start(); // not naturaly and ugly
include "hello.php";
$content = ob_get_clean();
$this->assertEquals("Hello Fabian", $content);
}
}
➥ Questions