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![Spaghetti Code 1) Spaghetti code is a specific [ goto 8 ] 2) written in order, but splattered [ goto 9 ] 3) allowed to jump to a specific [ goto 7 ] 4) the goto statement, which [ goto 3 ] 5) a set of instructions is not [ goto 2 ] 6) spaghetti. It often refers to [ goto 4 ] 7) line of code. [ end ] 8) kind of bad coding, where [ goto 5 ] 9) all over the place ( like a knotted [ goto 6 ] )](https://image.slidesharecdn.com/masterphp-fromspaghettitomvc-150817022603-lva1-app6892/75/Introduction-to-Using-PHP-MVC-Frameworks-21-2048.jpg)
![$db['default'] = array( 'dsn' => '', 'hostname' => 'localhost', 'username' => 'root', 'password' => '', 'database' => ‘master_php’, 'dbdriver' => 'mysqli', 'dbprefix' => '', 'pconnect' => FALSE, 'db_debug' => TRUE, 'cache_on' => FALSE, 'cachedir' => '', 'char_set' => 'utf8', 'dbcollat' => 'utf8_general_ci', 'swap_pre' => '', 'encrypt' => FALSE, 'compress' => FALSE, 'stricton' => FALSE, 'failover' => array(), 'save_queries' => TRUE ); http://www.codeigniter.com/user_guide/database/configuration.html <?php $host = 'localhost'; $dbname = 'master_php'; $user = 'root'; $pass = ''; try { // Connecting to MySQL $dbh = new PDO("mysql: host=$host;dbname=$dbname", $user, $pass);](https://image.slidesharecdn.com/masterphp-fromspaghettitomvc-150817022603-lva1-app6892/75/Introduction-to-Using-PHP-MVC-Frameworks-58-2048.jpg)
![<?php public function insert() { $this->name = $this->input->post('name'); // similar to $_POST['name']; $this->age = $this->input->post('age'); $this->email = $this->input->post('email'); $this->db->insert('users', $this); } <?php $stmt = $dbh->prepare("INSERT INTO users ( name, age, email ) values ( :name, :age, :email )"); $stmt->bindParam(':name', $name, PDO::PARAM_STR); $stmt->bindParam(':age', $age, PDO::PARAM_INT); $stmt->bindParam(':email', $email, PDO::PARAM_STR); $name = $_POST['name']; $age = $_POST['age']; $email = $_POST['email']; $stmt->execute(); Model - Add new user](https://image.slidesharecdn.com/masterphp-fromspaghettitomvc-150817022603-lva1-app6892/75/Introduction-to-Using-PHP-MVC-Frameworks-64-2048.jpg)
![<?php public function update() { $this->name = $this->input->post('name'); // similar to $_POST['name']; $this->age = $this->input->post('age'); $this->email = $this->input->post('email'); $this->db->update('users', $this, array('id' => $this->input->post('id'))); } <?php $stmt = $dbh->prepare("UPDATE users SET name = : name, age = :age, email = :email WHERE id = :id"); $stmt->bindParam(':name', $name, PDO::PARAM_STR); $stmt->bindParam(':age', $age, PDO::PARAM_INT); $stmt->bindParam(':email', $email, PDO::PARAM_STR); $stmt->bindParam(':id', $id, PDO::PARAM_INT); $name = $_POST['name']; $age = $_POST['age']; $email = $_POST['email']; $id = $_POST['id']; $stmt->execute(); Model - Edit user](https://image.slidesharecdn.com/masterphp-fromspaghettitomvc-150817022603-lva1-app6892/75/Introduction-to-Using-PHP-MVC-Frameworks-65-2048.jpg)
![<?php public function delete($id = FALSE) { $this->db->delete('users', array('id' => $id)); } <?php $stmt = $dbh->prepare("DELETE FROM users WHERE id = :id LIMIT 1"); $stmt->bindParam(':id', $id, PDO::PARAM_STR); $id = $_GET['delete']; $stmt->execute(); Model - Delete user](https://image.slidesharecdn.com/masterphp-fromspaghettitomvc-150817022603-lva1-app6892/75/Introduction-to-Using-PHP-MVC-Frameworks-66-2048.jpg)
![<?php foreach ($users as $user) { ?> <tr> <td><?php echo $user->id; ?></td> <td><?php echo $user->name; ?></td> <td><?php echo $user->age; ?></td> <td><?php echo $user->email; ?></td> <td> ... <?php // Get all users $stmt = $dbh->prepare("SELECT * FROM users"); $stmt->setFetchMode(PDO::FETCH_ASSOC); if ($stmt->execute()) { while ($row = $stmt->fetch()) { ?> <tr> <td><?php echo $row['id']; ?></td> <td><?php echo $row['name']; ?></td> <td><?php echo $row['age']; ?></td> <td><?php echo $row['email']; ?></td> <td> ... Views - listing](https://image.slidesharecdn.com/masterphp-fromspaghettitomvc-150817022603-lva1-app6892/75/Introduction-to-Using-PHP-MVC-Frameworks-72-2048.jpg)
![Relation with url http://example.com/index.php/CLASS/METHOD/PARAM http://masterphp.local/mvc/index.php/users/edit/2 <?php class Users extends CI_Controller { public function edit($id=FALSE) { if (isset($_POST['btnEdit'])) { $this->m_users->update(); redirect('users'); } $this->view_data['user'] = $this->m_users->get_user($id); $this->load->view('v_edit_user', $this->view_data); }](https://image.slidesharecdn.com/masterphp-fromspaghettitomvc-150817022603-lva1-app6892/75/Introduction-to-Using-PHP-MVC-Frameworks-77-2048.jpg)
![Relation with url http://example.com/index.php/CLASS/METHOD/PARAM http://masterphp.local/mvc/index.php/users/edit/2 <?php class Users extends CI_Controller { public function edit($id=FALSE) { if (isset($_POST['btnEdit'])) { $this->m_users->update(); redirect('users'); } $this->view_data['user'] = $this->m_users->get_user($id); $this->load->view('v_edit_user', $this->view_data); }](https://image.slidesharecdn.com/masterphp-fromspaghettitomvc-150817022603-lva1-app6892/75/Introduction-to-Using-PHP-MVC-Frameworks-78-2048.jpg)
![Relation with url http://example.com/index.php/CLASS/METHOD/PARAM http://masterphp.local/mvc/index.php/users/edit/2 <?php class Users extends CI_Controller { public function edit($id=FALSE) { if (isset($_POST['btnEdit'])) { $this->m_users->update(); redirect('users'); } $this->view_data['user'] = $this->m_users->get_user($id); $this->load->view('v_edit_user', $this->view_data); }](https://image.slidesharecdn.com/masterphp-fromspaghettitomvc-150817022603-lva1-app6892/75/Introduction-to-Using-PHP-MVC-Frameworks-79-2048.jpg)
![Relation with url http://example.com/index.php/CLASS/METHOD/PARAM1/PARAM2 http://masterphp.local/mvc/index.php/users/edit/2/3 <?php class Users extends CI_Controller { public function edit($id=FALSE, $param = ‘’) { if (isset($_POST['btnEdit'])) { $this->m_users->update(); redirect('users'); } $this->view_data['user'] = $this->m_users->get_user($id); $this->load->view('v_edit_user', $this->view_data); }](https://image.slidesharecdn.com/masterphp-fromspaghettitomvc-150817022603-lva1-app6892/75/Introduction-to-Using-PHP-MVC-Frameworks-80-2048.jpg)
![pretty url http://masterphp.local/mvc/index.php/users/edit/2 http://masterphp.local/mvc/users/edit/2 1. add .htaccess to root directory /applications /index.php /.htaccess RewriteEngine On RewriteCond %{REQUEST_FILENAME} !-f RewriteCond %{REQUEST_FILENAME} !-d RewriteRule ^(.*)$ index.php/$1 [L]](https://image.slidesharecdn.com/masterphp-fromspaghettitomvc-150817022603-lva1-app6892/75/Introduction-to-Using-PHP-MVC-Frameworks-84-2048.jpg)
![pretty url http://masterphp.local/mvc/index.php/users/edit/2 http://masterphp.local/mvc/users/edit/2 2. edit config file and delete index.php applications/config/config.php <?php $config['index_page'] = 'index.php'; become $config['index_page'] = '';](https://image.slidesharecdn.com/masterphp-fromspaghettitomvc-150817022603-lva1-app6892/75/Introduction-to-Using-PHP-MVC-Frameworks-85-2048.jpg)
Uploaded byGerald Krishnan
Introduction to Using PHP & MVC Frameworks
The document is a presentation by Hanafiah Yahya that discusses spaghetti code and the Model-View-Controller (MVC) design pattern used in web development with PHP frameworks like CodeIgniter. It emphasizes the importance of organized code, separation of concerns, and provides insights into various PHP MVC frameworks and coding practices. The presentation also includes topics on CodeIgniter configuration, models, views, and controllers, along with examples and links to resources.
Introduction to Using PHP & MVC Frameworks
- 1. From Spaghetti toMVC Hanafiah Yahya
- 2. Who is HanafiahYahya? ● Muhamad Hanafiah Bin Yahya ● Digital Immigrants generations ● Started programming, 1997 - MIRC script, VBA, Pascal, ● https://my.linkedin.com/in/hanafiahyahya
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- 5. Kreydle Academy ● CSR- Corporate social responsibility ● Non profit initiative… ● We contribute back to community ● Helping Graduates Gain the competitive edge ● fill in the gap between university and what industry really want ● Its free for student
- 6. Kreydle Academy ● Wantto contribute? ● Help us spread the word. share with your friends on twitter, facebook, blog and any medium that you have ● or Join us as guest speaker http://www.kreydle.com/academy/
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- 8. Topics 1. Spaghetti Code 2.MVC introduction 3. PHP MVC frameworks 4. Working with CodeIgniter 5. Config 6. Model 7. View 8. Controller 9. Continue your journey
- 9. Survey 1. Home manystudents/fresh graduate here? 2. Code in PHP? 3. Used MVC?
- 10. Topics 1. Spaghetti Code 2.MVC introduction 3. PHP MVC frameworks 4. Working with CodeIgniter 5. Config 6. Model 7. View 8. Controller 9. Continue your journey
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- 12. Why Spaghetti? -metaphor Things get really messy when connecting each other
- 13. back to theinvention of http://i144.photobucket.com/albums/r166/Funnyoldlife/tin-can-telephone.jpg A B
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- 18. Formula # Phones #Lines/ Connections 2 1 3 3 4 6 5 10 10 45 20 190 1000 ?
- 19. Formula # Phones #Lines 10 45 20 190 1000 499,500 Formula #Lines = ( p * ( p - 1 ) ) / 2 *p = phone
- 20. Where is myserver?
- 21. Spaghetti Code 1) Spaghetticode is a specific [ goto 8 ] 2) written in order, but splattered [ goto 9 ] 3) allowed to jump to a specific [ goto 7 ] 4) the goto statement, which [ goto 3 ] 5) a set of instructions is not [ goto 2 ] 6) spaghetti. It often refers to [ goto 4 ] 7) line of code. [ end ] 8) kind of bad coding, where [ goto 5 ] 9) all over the place ( like a knotted [ goto 6 ] )
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- 23. Solution? better designpattern HUB
- 24. Result # Phones #Lines 2 1 3 3 4 6 5 10 10 45 20 190 1000 499,500 # Phones # Lines 2 2 3 3 4 4 5 5 10 10 20 20 1000 1000 Original Refactor
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- 26. Enough Theory! Lets seesome code
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- 33. Topics 1. Spaghetti Code 2.MVC introduction 3. PHP MVC frameworks 4. Working with CodeIgniter 5. Config 6. Model 7. View 8. Controller 9. Continue your journey
- 34. History Invented in 1979by Smalltalk programmers, Trygve Reenskaug It is software design pattern http://heim.ifi.uio.no/~trygver/themes/mvc/mvc-index.html
- 35. History 1979?.. so old Madepopular by Ruby On Rails initial release on 2005 and adapted by PHP community https://upload.wikimedia.org/...n_Rails.svg.png
- 36. Why MVC? ● Organized& structured ● Separation of code ● loose coupling ● Easy code maintenance ● Reusable code. DRY - Don’t Repeat Yourself
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- 38. Model View Controller User Uses ManipulateUpdates Sees - RepresentKnowledge - Manages data, logic and rules of the application. - Business Logic
- 39. Model View Controller User Uses ManipulateUpdates Sees - Theoutput, whats user see. - Visual represent of the Model - Presentation layer
- 40. Model View Controller User Uses ManipulateUpdates Sees the middleman/ link between user and the system
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- 45.
- 46. Topics 1. Spaghetti Code 2.MVC introduction 3. PHP MVC frameworks 4. Working with CodeIgniter 5. Config 6. Model 7. View 8. Controller 9. Continue your journey
- 47.
- 48. PHP MVC Frameworks 1.CodeIgniter 2. Laravel 3. Symfony 4. CakePHP 5. FuelPHP 6. YII 7. … more
- 49. Topics 1. Spaghetti Code 2.MVC introduction 3. PHP MVC frameworks 4. Working with CodeIgniter 5. Config 6. Model 7. View 8. Controller 9. Continue your journey
- 50. Why CodeIgniter Why notCakePHP or Laravel or Symfony or FuelPHP or YII or Zend Framework or Kohana or Zoop or Akelos or PHP on Trax or Prado or Seagull or …?
- 51. Why CodeIgniter Because you’vegotta pick one
- 52. That being said,CI is not dead! ● easy to understand ● simple, doesn't require advance OOP ● quick to get up and running ● good docs
- 53. CodeIgniter is apowerful PHP framework with a very small footprint, built for developers who need a simple and elegant toolkit to create full- featured web applications. CodeIgniter http://www.codeigniter.com
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- 55.
- 56. Topics 1. Spaghetti Code 2.MVC introduction 3. PHP MVC frameworks 4. Working with CodeIgniter 5. Config 6. Model 7. View 8. Controller 9. Continue your journey
- 57.
- 58. $db['default'] = array( 'dsn'=> '', 'hostname' => 'localhost', 'username' => 'root', 'password' => '', 'database' => ‘master_php’, 'dbdriver' => 'mysqli', 'dbprefix' => '', 'pconnect' => FALSE, 'db_debug' => TRUE, 'cache_on' => FALSE, 'cachedir' => '', 'char_set' => 'utf8', 'dbcollat' => 'utf8_general_ci', 'swap_pre' => '', 'encrypt' => FALSE, 'compress' => FALSE, 'stricton' => FALSE, 'failover' => array(), 'save_queries' => TRUE ); http://www.codeigniter.com/user_guide/database/configuration.html <?php $host = 'localhost'; $dbname = 'master_php'; $user = 'root'; $pass = ''; try { // Connecting to MySQL $dbh = new PDO("mysql: host=$host;dbname=$dbname", $user, $pass);
- 59.
- 60. Topics 1. Spaghetti Code 2.MVC introduction 3. PHP MVC frameworks 4. Working with CodeIgniter 5. Config 6. Model 7. View 8. Controller 9. Continue your journey
- 61.
- 62.
- 63. <?php public function get_users() { $query= $this->db->get('users'); return $query->result(); } <?php // Get all users $stmt = $dbh->prepare("SELECT * FROM users"); $stmt->setFetchMode(PDO::FETCH_ASSOC); if ($stmt->execute()) { while ($row = $stmt->fetch()) { Model - Get all users
- 64. <?php public function insert() { $this->name= $this->input->post('name'); // similar to $_POST['name']; $this->age = $this->input->post('age'); $this->email = $this->input->post('email'); $this->db->insert('users', $this); } <?php $stmt = $dbh->prepare("INSERT INTO users ( name, age, email ) values ( :name, :age, :email )"); $stmt->bindParam(':name', $name, PDO::PARAM_STR); $stmt->bindParam(':age', $age, PDO::PARAM_INT); $stmt->bindParam(':email', $email, PDO::PARAM_STR); $name = $_POST['name']; $age = $_POST['age']; $email = $_POST['email']; $stmt->execute(); Model - Add new user
- 65. <?php public function update() { $this->name= $this->input->post('name'); // similar to $_POST['name']; $this->age = $this->input->post('age'); $this->email = $this->input->post('email'); $this->db->update('users', $this, array('id' => $this->input->post('id'))); } <?php $stmt = $dbh->prepare("UPDATE users SET name = : name, age = :age, email = :email WHERE id = :id"); $stmt->bindParam(':name', $name, PDO::PARAM_STR); $stmt->bindParam(':age', $age, PDO::PARAM_INT); $stmt->bindParam(':email', $email, PDO::PARAM_STR); $stmt->bindParam(':id', $id, PDO::PARAM_INT); $name = $_POST['name']; $age = $_POST['age']; $email = $_POST['email']; $id = $_POST['id']; $stmt->execute(); Model - Edit user
- 66. <?php public function delete($id= FALSE) { $this->db->delete('users', array('id' => $id)); } <?php $stmt = $dbh->prepare("DELETE FROM users WHERE id = :id LIMIT 1"); $stmt->bindParam(':id', $id, PDO::PARAM_STR); $id = $_GET['delete']; $stmt->execute(); Model - Delete user
- 67.
- 68. Topics 1. Spaghetti Code 2.MVC introduction 3. PHP MVC frameworks 4. Working with CodeIgniter 5. Config 6. Model 7. View 8. Controller 9. Continue your journey
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- 70.
- 71.
- 72. <?php foreach ($users as$user) { ?> <tr> <td><?php echo $user->id; ?></td> <td><?php echo $user->name; ?></td> <td><?php echo $user->age; ?></td> <td><?php echo $user->email; ?></td> <td> ... <?php // Get all users $stmt = $dbh->prepare("SELECT * FROM users"); $stmt->setFetchMode(PDO::FETCH_ASSOC); if ($stmt->execute()) { while ($row = $stmt->fetch()) { ?> <tr> <td><?php echo $row['id']; ?></td> <td><?php echo $row['name']; ?></td> <td><?php echo $row['age']; ?></td> <td><?php echo $row['email']; ?></td> <td> ... Views - listing
- 73.
- 74. Topics 1. Spaghetti Code 2.MVC introduction 3. PHP MVC frameworks 4. Working with CodeIgniter 5. Config 6. Model 7. View 8. Controller 9. Continue your journey
- 75.
- 76. Controller A Controller issimply a class file that is named in a way that can be associated with a URI.
- 77. Relation with url http://example.com/index.php/CLASS/METHOD/PARAM http://masterphp.local/mvc/index.php/users/edit/2 <?php classUsers extends CI_Controller { public function edit($id=FALSE) { if (isset($_POST['btnEdit'])) { $this->m_users->update(); redirect('users'); } $this->view_data['user'] = $this->m_users->get_user($id); $this->load->view('v_edit_user', $this->view_data); }
- 78. Relation with url http://example.com/index.php/CLASS/METHOD/PARAM http://masterphp.local/mvc/index.php/users/edit/2 <?php classUsers extends CI_Controller { public function edit($id=FALSE) { if (isset($_POST['btnEdit'])) { $this->m_users->update(); redirect('users'); } $this->view_data['user'] = $this->m_users->get_user($id); $this->load->view('v_edit_user', $this->view_data); }
- 79. Relation with url http://example.com/index.php/CLASS/METHOD/PARAM http://masterphp.local/mvc/index.php/users/edit/2 <?php classUsers extends CI_Controller { public function edit($id=FALSE) { if (isset($_POST['btnEdit'])) { $this->m_users->update(); redirect('users'); } $this->view_data['user'] = $this->m_users->get_user($id); $this->load->view('v_edit_user', $this->view_data); }
- 80. Relation with url http://example.com/index.php/CLASS/METHOD/PARAM1/PARAM2 http://masterphp.local/mvc/index.php/users/edit/2/3 <?php classUsers extends CI_Controller { public function edit($id=FALSE, $param = ‘’) { if (isset($_POST['btnEdit'])) { $this->m_users->update(); redirect('users'); } $this->view_data['user'] = $this->m_users->get_user($id); $this->load->view('v_edit_user', $this->view_data); }
- 81.
- 82.
- 83. Topics 1. Spaghetti Code 2.MVC introduction 3. PHP MVC frameworks 4. Working with CodeIgniter 5. Config 6. Model 7. View 8. Controller 9. Continue your journey
- 84. pretty url http://masterphp.local/mvc/index.php/users/edit/2 http://masterphp.local/mvc/users/edit/2 1. add.htaccess to root directory /applications /index.php /.htaccess RewriteEngine On RewriteCond %{REQUEST_FILENAME} !-f RewriteCond %{REQUEST_FILENAME} !-d RewriteRule ^(.*)$ index.php/$1 [L]
- 85. pretty url http://masterphp.local/mvc/index.php/users/edit/2 http://masterphp.local/mvc/users/edit/2 2. editconfig file and delete index.php applications/config/config.php <?php $config['index_page'] = 'index.php'; become $config['index_page'] = '';
- 86. Continue your journey 1.Library - the classes 2. Helpers - set of functions eg: url, { base_url(), site_url(), anchor() } 3. Database Classes & Helper 4. Custom URL Routing 5. more..
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