What is default controller in CodeIgniter?

Summary of the Article:

A controller is a class file in CodeIgniter that can be associated with a URI. When the controller’s name matches the first segment of a URI, it will be loaded. To specify a default controller, you can set the variable “$route[default_controller]” in the application/config/routes.php file. The default method in CodeIgniter is typically “index”, and it is called when the method’s name is not specified in the URI. The default controller is determined by the application/config/routes.php file. There are three types of controllers: on-off, proportional, and PID. Controllers in CodeIgniter are responsible for handling accounting-related activities within a company. The CI_Controller class in PHP is used as the base class for controllers in CodeIgniter. To change the default database in CodeIgniter, you can use the “$this->load->database” method with the appropriate database group. Default methods in programming allow for the addition of new functionality to existing interfaces while maintaining compatibility with older code. The three basic modes of a controller are proportional (P), integral (I), and derivative (D). The default Web API controller route template in CodeIgniter is “api/{controller}/{id}”.

Questions and Answers:

1. What is a controller in CodeIgniter?
A controller is simply a class file that can be associated with a URI. When the controller’s name matches the first segment of a URI, it will be loaded.

2. How do I change the default controller in CodeIgniter?
To specify a default controller, open the application/config/routes.php file and set the variable “$route[default_controller]” to the desired controller class name.

3. What is the default method in CodeIgniter?
The default method in CodeIgniter is typically “index”. It is called when the method’s name is not specified in the URI.

4. Which file determines the default controller in CodeIgniter?
The application/config/routes.php file determines which controller is called by default in CodeIgniter.

5. What are the three types of controllers?
The three basic types of controllers are on-off, proportional, and PID. The choice of controller type depends on the system being controlled.

6. What is the purpose of a controller?
A controller is responsible for handling accounting-related activities within a company, including high-level accounting, managerial accounting, and finance activities.

7. What is CI_Controller in PHP?
CI_Controller is a class provided by CodeIgniter that serves as the base class for all controllers in a CodeIgniter application.

8. How can I change the default database in CodeIgniter?
To change the default database in CodeIgniter, you can use the “$this->load->database” method with the appropriate database group.

9. Why do we use default methods?
Default methods allow for the addition of new functionality to existing interfaces and ensure compatibility with older versions of those interfaces.

10. What are the three modes of a controller?
The three basic modes of a controller are proportional (P), integral (I), and derivative (D). There are also combinations of these modes, such as PI, PD, and PID.

11. What is the default Web API controller route template?
The default route template for Web API controllers in CodeIgniter is “api/{controller}/{id}”. The framework matches the URI against this template to determine the appropriate controller.

What is default controller in CodeIgniter?

What is a controller in CodeIgniter

A Controller is simply a class file that is named in a way that can be associated with a URI. In the above example, CodeIgniter would attempt to find a controller named Blog. php and load it. When a controller's name matches the first segment of a URI, it will be loaded.
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How do I change the default controller in CodeIgniter

To specify a default controller, open your application/config/routes. php file and set this variable: $route['default_controller'] = ' Blog '; Where Blog is the name of the controller class you want used.
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What is the default method in CodeIgniter

In such situations, the CodeIgniter calls the default method “index”. Visiting the second URI in the browser, we get the same output as shown in the above picture. Here, we have passed method's name after controller's name in the URI. As the name of the method is “index”, we are getting the same output.
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Which determines which controller is called by default

php. The application/config/routes. php file determines which controller is called by default.

What are three types of controllers

There are three basic types of controllers: on-off, proportional and PID. Depending upon the system to be controlled, the operator will be able to use one type or another to control the process.

What is the purpose of a controller

What Is a Controller A controller is an individual who has responsibility for all accounting-related activities, including high-level accounting, managerial accounting, and finance activities, within a company.

What is CI_Controller in php

The pages class is extending the CI_Controller class. This means that the new pages class can access the methods and variables defined in the CI_Controller class ( system/core/Controller. php ). The controller is what will become the center of every request to your web application.

How to change the default database in CodeIgniter

4 Answers@Nish have tried this way for default database load: $this->load->database('default', TRUE); – Syed Ahmed. Feb 9, 2014 at 10:12.Worked for me using: $second_db = $this->load->database('second_group',TRUE,FALSE); Making the group constant: $db['second_group']['pconnect'] = FALSE; – ChristoKiwi.

Why do we use default methods

Default methods enable you to add new functionality to existing interfaces and ensure binary compatibility with code written for older versions of those interfaces. In particular, default methods enable you to add methods that accept lambda expressions as parameters to existing interfaces.

What are the 3 modes of controller

There are three basic controller modes, the proportional controller (P), the integral controller (I), the derived controller (D). There are three other combinations of basic controller modes, PI, PD, PID.

What is the default Web API controller

The default route template for Web API is "api/{controller}/{id}". In this template, "api" is a literal path segment, and {controller} and {id} are placeholder variables. When the Web API framework receives an HTTP request, it tries to match the URI against one of the route templates in the routing table.

What are the basic types of controllers

There are three basic types of controllers: on-off, proportional and PID. Depending upon the system to be controlled, the operator will be able to use one type or another to control the process.

What are the two main types of controllers

There are two main types of controllers: continuous controllers, and discontinuous controllers.

What are the three main roles of a controller

Typical duties of a controllerPlanning, directing and coordinating all accounting operational functions.Managing the accumulation and consolidation of all financial data necessary for an accurate accounting of consolidated business results.Coordinating and preparing internal and external financial statements.

How to write HTML code in CodeIgniter controller

$output = "<html><body><table>"; // Keep this outside for loop to print only once. var $j = 0; for ($i = count($arr)-1; $i >= 0; $i–) { if ($j % 4 == 0) { $output. ="<tr>"; } $output.

What are the routes in CodeIgniter

CodeIgniter has two kinds of routing. One is Defined Route Routing, and the other is Auto Routing. With Defined Route Routing, you can define routes manually. It allows flexible URL.

What is the default host name of a database

The default host name is localhost .

What is the default config file in CodeIgniter

By default, CodeIgniter has one primary config file, located at application/config/config. php . If you open the file using your text editor you'll see that config items are stored in an array called $config .

What is the difference between static and default method

Default methods enable you to add new functionality to the interfaces of your libraries and ensure binary compatibility with code written for older versions of those interfaces. A static method is a method that is associated with the class in which it is defined rather than with any object.

What does default method mean

Default methods are methods that can have a body.

The most important use of default methods in interfaces is to provide additional functionality to a given type without breaking down the implementing classes.

What is the difference between API and controller

The main difference is: Web API is a service for any client, any devices, and MVC Controller only serve its client. The same because it is MVC platform. Save this answer. Show activity on this post.

What is the difference between Web API controller and normal controller

The Web API returns the data in various formats, such as JSON, XML and other format based on the accept header of the request. But the MVC returns the data in the JSON format by using JSONResult. The Web API supports content negotiation, self hosting. All these are not supported by the MVC.

Which controller is mostly used

The most commonly used controllers are the proportional-integral-derivative (PID) controllers. PID controllers relate the error to the actuating signal either in a proportional (P), integral (I), or derivative (D) manner.

How to include CSS and JS in CodeIgniter controller

Adding JavaScript and CSS (Cascading Style Sheet) file in CodeIgniter is very simple. You have to create JS and CSS folder in root directory and copy all the . js files in JS folder and . css files in CSS folder as shown in the figure.

What are the 4 types of routes

There are four types of routes. These types are connected route, local route, static route, and dynamic route. Automatic routing adds connected routes and local routes to the routing table.