Introduction to Codeigniter
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This document provides an introduction and overview of CodeIgniter, an open source PHP web application framework. It discusses CodeIgniter's installation, structure, configuration, URLs, use of controllers, models and views, built-in functions, and Sparks packages. The document recommends CodeIgniter for beginners due to its simplicity, lack of complex configuration, good performance, and availability of Chinese documentation. It provides examples of creating controllers and views, loading models, and using the template parser and built-in functions.
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Introduction to Codeigniter
- 1. Introduction to CodeIgniter Zeroplex 2012/06/14
- 2. 初學 PHP 買書 線上文件 2
- 3. BUT 3
- 4. 書上不會提到 4
- 5. 重複的程式碼 $user = trim( mysql_escape_string($_POST[„user‟] ) ); $pwd = trim( mysql_escape_string($_POST[„pwd‟] ) ); 5
- 7. 架構 $ tree ● ├── html ├── lib ├── upload ├── config.php.sample ├── global.php └── index.php 7
- 8. 混亂的程式碼 8
- 9. 混亂的程式碼 HTML 9
- 10. 混亂的程式碼 CSS 10
- 11. 混亂的程式碼 HTML 11
- 12. 混亂的程式碼 HTML 12
- 13. 混亂的程式碼 PHP 13
- 14. 混亂的程式碼 Smarty Template Engine 14
- 15. 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 15
- 16. PHP Frameworks Modules Templates MVC DB Objects Validation 16
- 17. PHP Frameworks 17
- 18. PHP Frameworks 較知名的 framework Zend CakePHP Symfony 18
- 19. Benchmarks ab –c 100 –n 30000 19
- 20. 拿不定主意 20
- 21. 直到 PHPconf 2011 21
- 22. 22
- 23. 23
- 24. 24
- 25. So .... 25
- 26. CodeIgniter
- 27. CodeIgnter 麻雀雖小五藏俱全 27
- 28. CodeIgnter 麻雀雖小五藏俱全 沒有複雜的設定 28
- 29. CodeIgnter 麻雀雖小五藏俱全 沒有複雜的設定 效能佳 29
- 30. CodeIgnter 麻雀雖小五藏俱全 沒有複雜的設定 效能佳 中文文件 30
- 31. 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) 31
- 32. CodeIgniter 簡介 Installation Structure Configuration URLs Controller / Model / View Built-in Functions Sparks 32
- 33. Installation 1. wget 2. unzip CodeIgniter-2.1.0.zip ..... Done ! 33
- 34. 34
- 35. 如果沒有成功 35
- 36. 不要讓日落靠近 36
- 37. Structure ─── application ├── config ├── controllers ├── models ├── views ├── ........ ├── system └── index.php 37
- 38. Structure ─── application 網站程式所在位置 ├── config ├── controllers ├── models ├── views ├── ........ ├── system └── index.php 38
- 39. Structure ─── application ├── config ├── controllers ├── models ├── views ├── ........ ├── system CodeIgniter 核心 └── index.php 39
- 40. Configuration application/config config.php database.php autoload.php 40
- 41. Configuration application/config config.php ─── site URL database.php charset log/cache path autoload.php session / cookie 41
- 42. Configuration application/config config.php database.php autoload.php 42
- 43. Configuration application/config config.php database.php autoload.php ─── 在程式執行時自動 載入模組或函式 43
- 44. URLs URL segment map to Controller index.php/post/show/2385 44
- 45. URLs URL segment map to Controller index.php/post/show/2385 Controller Argument Method 45
- 46. URLs class Post extends CI_Controller { public function show($id){ // Get post information } } 46
- 47. Controller application/controller/welcome.php: class Welcome extends CI_Controller { public function index(){ $this->load-> view('welcome_message'); } 47
- 48. Controller application/controller/welcome.php: class Welcome extends CI_Controller { public function index(){ $this->load-> view('welcome_message'); } 48
- 49. Controller application/controller/welcome.php: class Welcome extends CI_Controller { public function index(){ $this->load-> view('welcome_message'); } 49
- 50. Your Own Controller controller/hello.php class Hello extends CI_Controller { public function greeting($id){ echo “Hello $id”; } } 50
- 51. Your Own Controller controller/hello.php class Hello extends CI_Controller { public function greeting($id){ echo “Hello $id”; } } Print „Hello C4Labs‟ : index.php/hello/greeting/C4Labs 51
- 52. Your Own Controller Deny method from URL access class Hello extends CI_Controller { public function _greeting($id){ echo “Hello $id”; } } Underline 52
- 53. View 位於 application/view/ 由 controller 載入 Template parser 53
- 54. View application/view/hello.php <html><body> <h1> Hello <?php echo $id;?> </h1> </html></body> 54
- 55. View Load view function hello($id){ $data[„id‟] = $id; $this->load->view(„hello‟, $data); } 55
- 56. Template Parser <html><body> <h1> Hello <?php echo $id;?> </h1> </html></body> PHP 56
- 57. Template Parser <html><body> <h1> Hello {id} </h1> </html></body> 57
- 58. Template Parser function hello($id){ $this->load->library(„parser‟); $data[„id‟] = $id; $this->parser-> parse(„hello', $data); } 58
- 59. Model Process data in database class User extends CI_Model{ function getUser($uid) { ... } function deleteUser($uid) { ... } } 59
- 60. Model Load model in controller $this->load->model(„user‟); $user = $this->user->getUser(2); 60
- 61. Built-in Functions Library Input Template Parser File Uploading Helper URL CAPTCHA 61
- 62. Built-in Functions Load $this->load->library(„upload‟); $this->load->helper(„url‟); Use $this->upload->data(); echo site_url(); 62
- 63. No enough? 63
- 64. Sparks ! 64
- 65. Sparks Package management system for CodeIgniter Easy to install Lots of useful packages Makes you lazy 65
- 66. Install Sparks php -r "$(curl -fsSL http://getsparks.org/go-sparks)" 66
- 67. 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! 67
- 68. Using Packages Load and call $this->load->spark(„redis/0.3.0‟); $this->redis->set(„foo‟, „bar‟); 68
- 69. More CodeIgniter 中文討論區 http://www.codeigniter.org.tw/forum/ CodeIgniter Wiki http://codeigniter.com/wiki 69
- 70. Q & A 70
- 71. Live Debug Demo 71
- 72. Thank You 72