![\"twitter-oauth-login-app-consumer-api-key-secret-codexworld\"](\"https:\/\/www.codexworld.com\/wp-content\/uploads\/2017\/03\/twitter-oauth-login-app-consumer-api-key-secret-codexworld.png\")
<\/div>\n
Copy the Consumer Key<\/b> and Consumer Secret<\/b> for later use in the script.<\/p>\n
Before getting started to Twitter login integration process, take a look at the files structure of Twitter login in CodeIgniter<\/b>.<\/p>\ncodeigniter_twitter_login\/<\/span>\r\n\u251c\u2500\u2500 application\/<\/span>\r\n\u2502 \u251c\u2500\u2500 config\/<\/span>\r\n\u2502 \u2502 \u2514\u2500\u2500 twitter.php\r\n\u2502 \u251c\u2500\u2500 controllers\/<\/span>\r\n\u2502 \u2502 \u2514\u2500\u2500 User_authentication.php\r\n\u2502 \u251c\u2500\u2500 libraries\/<\/span>\r\n\u2502 \u2502 \u2514\u2500\u2500 Twitteroauth.php\r\n\u2502 \u251c\u2500\u2500 models\/<\/span>\r\n\u2502 \u2502 \u2514\u2500\u2500 User.php\r\n\u2502 \u251c\u2500\u2500 third_party\/<\/span>\r\n\u2502 \u2502 \u2514\u2500\u2500 OAuth.php\r\n\u2502 \u2514\u2500\u2500 views\/<\/span>\r\n\u2502 \u2514\u2500\u2500 user_authentication\/<\/span>\r\n\u2502 \u2514\u2500\u2500 index.php\r\n\u2514\u2500\u2500 assets\/<\/span>\r\n \u251c\u2500\u2500 css\/<\/span>\r\n \u2502 \u2514\u2500\u2500 style.php\r\n \u2514\u2500\u2500 images\/<\/span>\r\n \u2514\u2500\u2500 sign-in-with-twitter.png\r\n<\/pre>\nCreate Database Table<\/h2>\n
To store the user’s profile information a table needs to be created in the database. The following SQL creates a users<\/code> table with some basic fields in the MySQL database.<\/p>\nCREATE<\/span> TABLE<\/span> `users`<\/span> (\r\n `id`<\/span> int<\/span>(11<\/span>) NOT<\/span> NULL<\/span> AUTO_INCREMENT,\r\n `oauth_provider`<\/span> enum(''<\/span>,'facebook'<\/span>,'google'<\/span>,'twitter'<\/span>) COLLATE<\/span> utf8_unicode_ci NOT<\/span> NULL<\/span> DEFAULT<\/span> 'twitter'<\/span>,\r\n `oauth_uid`<\/span> varchar<\/span>(50<\/span>) COLLATE<\/span> utf8_unicode_ci NOT<\/span> NULL<\/span>,\r\n `first_name`<\/span> varchar<\/span>(25<\/span>) COLLATE<\/span> utf8_unicode_ci NOT<\/span> NULL<\/span>,\r\n `last_name`<\/span> varchar<\/span>(25<\/span>) COLLATE<\/span> utf8_unicode_ci NOT<\/span> NULL<\/span>,\r\n `email`<\/span> varchar<\/span>(25<\/span>) COLLATE<\/span> utf8_unicode_ci DEFAULT<\/span> NULL<\/span>,\r\n `gender`<\/span> varchar<\/span>(10<\/span>) COLLATE<\/span> utf8_unicode_ci DEFAULT<\/span> NULL<\/span>,\r\n `locale`<\/span> varchar<\/span>(10<\/span>) COLLATE<\/span> utf8_unicode_ci DEFAULT<\/span> NULL<\/span>,\r\n `picture`<\/span> varchar<\/span>(200<\/span>) COLLATE<\/span> utf8_unicode_ci NOT<\/span> NULL<\/span>,\r\n `username`<\/span> varchar<\/span>(50<\/span>) COLLATE<\/span> utf8_unicode_ci NOT<\/span> NULL<\/span>,\r\n `link`<\/span> varchar<\/span>(100<\/span>) COLLATE<\/span> utf8_unicode_ci NOT<\/span> NULL<\/span>,\r\n `created`<\/span> datetime NOT<\/span> NULL<\/span>,\r\n `modified`<\/span> datetime NOT<\/span> NULL<\/span>,\r\n PRIMARY KEY<\/span> (`id`<\/span>)\r\n) ENGINE<\/span>=InnoDB<\/span> DEFAULT<\/span> CHARSET<\/span>=utf8 COLLATE<\/span>=utf8_unicode_ci;<\/pre>\nConfig (application\/config\/)<\/h2>\n
autoload.php<\/code><\/b>
\nSpecify the commonly used library (database and session) or helper (url) to load by default.<\/p>\n$autoload<\/span>[<\/span>'libraries'<\/span>] = array(<\/span>'database'<\/span>, <\/span>'session'<\/span>);
<\/span>$autoload<\/span>[<\/span>'helper'<\/span>] = array(<\/span>'url'<\/span>);<\/span><\/pre>\ntwitter.php<\/code><\/b>
\nTwitter API configuration variables are defined in this file. Specify the Consumer Key<\/b>, Consumer Secret<\/b> and Redirect URL<\/b> according to your Twitter App credentials.<\/p>\n<?php
defined<\/span>(<\/span>'BASEPATH'<\/span>) OR exit(<\/span>'No direct script access allowed'<\/span>);
<\/span>\/*
|--------------------------------------------------------
| Twitter API Configuration
|--------------------------------------------------------
|
| To get API details you have to create a Twitter app
| at Twitter Application Management (https:\/\/apps.twitter.com\/app\/new)
|
| twitter_consumer_key string Your Twitter App Key.
| twitter_consumer_secret string Your Twitter App secret.
| twitter_redirect_url string URL to redirect back to after login. (do not include base URL)
|
*\/
<\/span>$config<\/span>[<\/span>'twitter_consumer_key'<\/span>] = <\/span>'Insert_Twitter_API_Key'<\/span>;
<\/span>$config<\/span>[<\/span>'twitter_consumer_secret'<\/span>] = <\/span>'Insert_Twitter_API_Secret'<\/span>;
<\/span>$config<\/span>[<\/span>'twitter_redirect_url'<\/span>] = <\/span>'user_authentication\/'<\/span>;<\/span><\/pre>\nNote that:<\/span> You’ll find the Consumer Key and Consumer Secret at your Twitter App. (Go to the Twitter Application Management page »<\/b> Click on your app »<\/b> Navigate to the Keys and Access Tokens<\/b> tab »<\/b> Copy the API Key<\/b> and API Secret<\/b> »<\/b> Replace the twitter_consumer_key<\/code> value with API key and twitter_consumer_secret<\/code> value with API secret)<\/p>\nThird Party (application\/third_party\/)<\/h2>\n
OAuth.php<\/code><\/b>
\nThe OAuth library helps to authenticate with Twitter API. You don’t need to download it separately, this library is included in the source code.<\/p>\nLibraries (application\/libraries\/)<\/h2>\n
Twitteroauth.php<\/code><\/b>
\nThe Twitter OAuth library helps to integrate Twitter REST API in CodeIgniter 3.x<\/b> application. Using this Twitter API library, you can easily add the login with Twitter functionality to the CodeIgniter application using PHP OAuth library. You don’t need to download it separately, this library is included in the source code.<\/p>\nControllers (application\/controllers\/)<\/h2>\n
User_authentication.php<\/code><\/b>
\nThe User_Authentication controller contains 3 functions, __construct(), index(), and logout().<\/p>\n\n- __construct()<\/b> \u2013 The Twitter OAuth library and User model are loaded in this method.<\/li>\n
- index()<\/b> \u2013 This function handles the authentication functionality with Twitter account.\n
\n- If the user already logged in with Twitter, latest tweets will be fetched from their timeline.<\/li>\n
\n- If the user authenticated with Twitter, the following happens:\n
- Twitter OAuth is initiated and get the access token from Twitter.<\/li>\n
- Get the user’s profile info from Twitter account.<\/li>\n
- Insert profile data in the database using checkUser() method of the User model.<\/li>\n
- Get the latest tweets from the user timeline.<\/li>\n
- Store access token and user profile info into session.<\/li>\n<\/ul>\n<\/li>\n
- Otherwise, fresh authentication is initiated and Twitter authentication URL is generated.<\/li>\n<\/ul>\n<\/li>\n
- logout()<\/b> – This function removes the OAuth Token and user data from the SESSION. The
logout()<\/code> method is loaded to logout the user from their Twitter account.<\/li>\n<\/ul>\n<?php
defined<\/span>(<\/span>'BASEPATH'<\/span>) OR exit(<\/span>'No direct script access allowed'<\/span>);
class <\/span>User_Authentication <\/span>extends <\/span>CI_Controller <\/span>{
function <\/span>__construct<\/span>(){
<\/span>parent<\/span>::<\/span>__construct<\/span>();
<\/span>\/\/ Load user model
<\/span>$this<\/span>-><\/span>load<\/span>-><\/span>model<\/span>(<\/span>'user'<\/span>);
<\/span>\/\/ Load twitter oauth library
<\/span>$this<\/span>-><\/span>load<\/span>-><\/span>library<\/span>(<\/span>'twitteroauth'<\/span>);
}
public function <\/span>index<\/span>(){
<\/span>$userData <\/span>= array();
<\/span>\/\/ Get existing token and token secret from session
<\/span>$sessToken <\/span>= <\/span>$this<\/span>-><\/span>session<\/span>-><\/span>userdata<\/span>(<\/span>