Laravel level 0 (introduction)

Laravel Level 0 The Introduction to Laravel By Spicydog (31-10-2016)

Agenda ● Lecturer introduce ● PHP in Brief ○ PHP Basic (Variable, Controls, Function) ○ PHP Intermediate (OOP) ● Web Application Development World ○ CMS (Content Management System) ○ Application Frameworks ● Introduction to Laravel ○ What is Laravel? ○ Why Laravel? ○ Prerequisites ● Development Environment ● Workshop & Assignments

● Simply a full stack developer since high school ● Graduated MS from CPE@KMUTT ● Do research but still love application developments ● Dev everything from web to Android to iOS ● Feel free to discuss with me, I love knowledge sharing! Hello! it’s me, Spicydog!

● Established in 1995 ● Zend Technologies and PHP communities ● Most popular version: 5.6 ● Most recent version: 7.1 (recommend 7.0) ● PHP is a SCRIPT Language ● Designed for web development (I am good at string things) ● Almost dominate the internet, supported by most hosting, has so many CMS and frameworks PHP is everywhere and now here!

Let’s Rock with PHP Variable $ for variable $a = “1” // string(1) "1" $b = ’1’ // string(1) "1" $c = 1 // int(1) $d = 1.0 // float(1) var_dump() for variable information var_dump($a+$b); // int(2) var_dump($a.$b); // string(2) "11" var_dump($a+$c); // int(2) var_dump($c.$d); // string(2) "11" var_dump($c+$d); // float(2) So becareful! PHP is dynamic type, it works most of the times but it always. You must cast types with intval(), floatval(), and friends.. sometimes

'string' and "string" are NOT the same! $a = 1; $b = 2; $c = 3; echo '$a $b $c '; echo '$an$bn$cn'; echo "$a $b $c "; echo "$an$bn$cn"; $a $b $c $an$bn$cn1 2 3 1 2 3

Controls in PHP are similar to C and Java If..Else if ($a) {} else {} For for($i=0; $i<10; $i++;) {} While $i=0; while($i<10) {$i++;} Do..While $i=0; do{$i++;} while($i<10); Switch switch ($i) { case 0: break; default: break; }

Functions in PHP are also similar to C and Java function name($param1, $param2) { return $param1 . $param2; } name(‘1’,’2’); // string(2) "12"

Class in PHP <?php class Foo { public static $my_static = 'foo'; public function staticValue() { return self::$my_static; } } class Bar extends Foo { public function fooStatic() { return parent::$my_static; } } print Foo::$my_static . "n"; $foo = new Foo(); print $foo->staticValue() . "n"; print $foo->my_static . "n"; // Undefined "Property" my_static print $foo::$my_static . "n"; $classname = 'Foo'; print $classname::$my_static . "n"; // As of PHP 5.3.0 print Bar::$my_static . "n"; $bar = new Bar(); print $bar->fooStatic() . "n"; ?> self for static $this for object :: call to static -> call to object http://php.net/manual/en/language.oop5.static.php

Web Application Development World

In web application development world, we.. Do it easy Do it quick Do it simple Do it readable Do it secure Do it extendable We try to use less money and time to have things done!

So we go for CMS and Frameworks ● CMS (Content Management System) ○ A web application for content management ○ Install and ready to go! ○ Work on most simple tasks ○ Not very flexible ● Application Framework ○ A template for application development ○ Pattern the code ○ Avoid reinvent the wheel ○ Easy and dev on top and flexible for most tasks ○ Require programming skills

Laravel, a super productive PHP framework ● Laravel first launched in 2011 ● Current version is 5.3 ● Developed on top of Symfony ● Aims: fun, productive, clean, extendable ● Relatively bad in performance (but not that bad!)

Why Laravel? ● Easy to learn! (hopefully) ● Full of tools, ready for dev, tons of libraries ● We want our application to finish as fast as possible ● We want to work least ● We want our application easy to develop ● Our application is not user intensive ● Save time, save money, and done more things! Say all of these in one word.. PRODUCTIVITY

But wait!! You have to know.. PHP Basic PHP with DBMS PHP OOP PHP CLI MVC Composer Artisan CLI OMG

Don’t Worry! I’m here to help you out :)

PHP CLI CLI stands for Command Line Interface Similar to Command Prompt and whatever Shell but this is PHP Try this on your terminal! php -a Are you using Windows? Good luck, help yourself! GOOGLE

Model-View-Controller A primitive flow for software development Client (Request) => Controller (Logic) => Model (Data Logic) => Controller (Login Again) => View (Display) => Client (Response) Partitioning codes by its functionality Easy to maintain This is a must-known thing in any software development http://www.tutorialized.com/tutorial/Fundamentals-of-an-MVC-Framework/81946

Composer The most popular dependency management tool in PHP Get any libraries by typing in CLI For example, Install Laravel, we simply enter: composer create-project --prefer-dist laravel/laravel blog Add library to laravel we do: composer require "laravelcollective/html":"^5.2.0" Q: Where did I get these commands? A: Google it man, they are on the website https://getcomposer.org

Artisan CLI Artisan is a PHP CLI Tool help you manage Laravel components Simply go to Laravel root directory and type: php artisan We are going to talk about this later since we are going to use it a lot!

Make sure you can run.. php from your command line Otherwise, install PHP (we use PHP 5.6+) composer from your command line Otherwise, install Composer Web Server on your computer Recommend Apache for Rookie You can use XAMPP for Windows or MAMP for Mac or LAMP for Linux PHP IDE I recommend PhpStorm, use your student status to claim a license Git We use Git here, you can use SourceTree if you want GUI client

Coding Style In Laravel, we follow PSR-2 Coding Style Please follow this style => <?php namespace VendorPackage; use FooInterface; use BarClass as Bar; use OtherVendorOtherPackageBazClass; class Foo extends Bar implements FooInterface { public function sampleMethod($a, $b = null) { if ($a === $b) { bar(); } elseif ($a > $b) { $foo->bar($arg1); } else { BazClass::bar($arg2, $arg3); } } final public static function bar() { // method body } }

ROCK n’ LOAD The most valuable skill is the skill to learn new things, so here is your works have to make it done before next time - Install development environment I have talked in last section - Install your first Laravel Application - Have a look at Directory Structure - Try whatever you want Extra! - Wanna in advance? Go watch to Laracasts - Free public cloud you can get from AWS Free Tier Or claim free DigitalOcean credit from Github Student

Woo hoo! No more slides, let’s rock!

Laravel level 0 (introduction)

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Laravel level 0 (introduction)