introduction to codeigniter
DESCRIPTION
Small Talk @ C4LabsTRANSCRIPT
Introduction to
CodeIgniter
Zeroplex
2012/06/14
初學 PHP
買書
線上文件
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3
B U T
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書上不會提到
重複的程式碼
$user = trim(
mysql_escape_string($_POST[„user‟] )
);
$pwd = trim(
mysql_escape_string($_POST[„pwd‟] )
);
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參考 PHPWind 程式碼，後重新修改自用程式架構
架構
$ tree●
├── html
├── lib
├── upload
├── config.php.sample
├── global.php
└── index.php
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混亂的程式碼
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混亂的程式碼
HTML
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混亂的程式碼
CSS
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混亂的程式碼
HTML
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混亂的程式碼
HTML
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混亂的程式碼
PHP
混亂的程式碼
Smarty Template Engine
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問題仍然存在
相當耗時
不夠安全
不容易重複使用
佈署困難
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PHP Frameworks
Modules
Templates
MVC
DB Objects
Validation
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PHP Frameworks
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PHP Frameworks
較知名的 framework
Zend
CakePHP
Symfony
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Benchmarks
ab –c 100 –n 30000
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拿不定主意
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直到
PHPconf 2011
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So ....
CodeIgniter
CodeIgnter
麻雀雖小五藏俱全
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CodeIgnter
麻雀雖小五藏俱全
沒有複雜的設定
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CodeIgnter
麻雀雖小五藏俱全
沒有複雜的設定
效能佳
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CodeIgnter
麻雀雖小五藏俱全
沒有複雜的設定
效能佳
中文文件
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CodeIgnter
麻雀雖小五藏俱全
沒有複雜的設定
效能佳
中文文件 (其實只有一半是中文 XD)
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CodeIgniter 簡介
Installation
Structure
Configuration
URLs
Controller / Model / View
Built-in Functions
Sparks
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Installation
1. wget
2. unzip CodeIgniter-2.1.0.zip
..... Done !
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如果沒有成功
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不要讓日落靠近
Structure
─── application
├── config
├── controllers
├── models
├── views
├── ........
├── system
└── index.php
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Structure
─── application 網站程式所在位置
├── config
├── controllers
├── models
├── views
├── ........
├── system
└── index.php
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Structure
─── application
├── config
├── controllers
├── models
├── views
├── ........
├── system CodeIgniter 核心
└── index.php
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Configuration
application/config
config.php
database.php
autoload.php
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Configuration
application/config
config.php ───
database.php
autoload.php
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site URLcharsetlog/cache pathsession / cookie
Configuration
application/config
config.php
database.php
autoload.php
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Configuration
application/config
config.php
database.php
autoload.php ───
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在程式執行時自動載入模組或函式
URLs
URL segment map to Controller
index.php/post/show/2385
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URLs
URL segment map to Controller
index.php/post/show/2385
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ControllerArgument
Method
URLs
class Post extends CI_Controller {
public function show($id){
// Get post information
}
}
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Controller
application/controller/welcome.php:
class Welcome extends CI_Controller {
public function index(){
$this->load->
view('welcome_message');
}
}
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Controller
application/controller/welcome.php:
class Welcome extends CI_Controller {
public function index(){
$this->load->
view('welcome_message');
}
}
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Controller
application/controller/welcome.php:
class Welcome extends CI_Controller {
public function index(){
$this->load->
view('welcome_message');
}
}
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Your Own Controller
controller/hello.php
class Hello extends CI_Controller {
public function greeting($id){
echo “Hello $id”;
}
}
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Your Own Controller
controller/hello.php
class Hello extends CI_Controller {
public function greeting($id){
echo “Hello $id”;
}
}
Print „Hello C4Labs‟ :
index.php/hello/greeting/C4Labs51
Your Own Controller
Deny method from URL access
class Hello extends CI_Controller {
public function _greeting($id){
echo “Hello $id”;
}
}
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Underline
View
位於 application/view/
由 controller 載入
Template parser
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View
application/view/hello.php
<html><body>
<h1>
Hello <?php echo $id;?>
</h1>
</html></body>
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View
Load view
function hello($id){
$data[„id‟] = $id;
$this->load->view(„hello‟, $data);
}
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Template Parser
<html><body>
<h1>
Hello <?php echo $id;?>
</h1>
</html></body>
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PHP
Template Parser
<html><body>
<h1>
Hello {id}
</h1>
</html></body>
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Template Parser
function hello($id){
$this->load->library(„parser‟);
$data[„id‟] = $id;
$this->parser->
parse(„hello', $data);
}
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Model
Process data in database
class User extends CI_Model{
function getUser($uid) { ... }
function deleteUser($uid) { ... }
}
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Model
Load model in controller
$this->load->model(„user‟);
$user = $this->user->getUser(2);
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Built-in Functions
Library
Input
Template Parser
File Uploading
Helper
URL
CAPTCHA
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Built-in Functions
Load
$this->load->library(„upload‟);
$this->load->helper(„url‟);
Use
$this->upload->data();
echo site_url();
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No enough?
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Sparks !
Sparks
Package management system for CodeIgniter
Easy to install
Lots of useful packages
Makes you lazy
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Install Sparks
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php -r "$(curl -fsSL http://getsparks.org/go-sparks)"
Using Sparks
$ php tools/spark search redis
menu - The Menu library is used to ....
redis - A CodeIgniter library to ....
$ php tools/spark install redis
Retrieving spark detail from getsparks.org
........
Spark installed to ./sparks/redis/0.3.0 - You're on fire!
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Using Packages
Load and call
$this->load->spark(„redis/0.3.0‟);
$this->redis->set(„foo‟, „bar‟);
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More
CodeIgniter 中文討論區http://www.codeigniter.org.tw/forum/
CodeIgniter Wikihttp://codeigniter.com/wiki
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Q & A
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Live Debug
Demo
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Thank You