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How to Install CodeIgniter CentOS 7?

CodeIgniter is a PHP framework used to build a web application that is widely used by developers worldwide. Before you install CodeIgniter, make sure the following are installed beforehand – 

  • Webserver Apache or Nginx
  • PHP 5.6
  • MySQL
  • Composer

Once you confirm that the above-listed components are in your server, proceed to install CodeIgniter with the following steps.

1. Set SELinux status to disable.

# SELINUX=disabled

2. Let us create MySQL Database for CodeIgniter.

# create database mycode_db;
grant all privileges on mycodeusr.* to mycode_db@'localhost' identified by 'your_password';
flush privileges;
exit

3. Now, we will install Composer Package Manager.

# curl -sS https://getcomposer.org/installer | php

# mv composer.phar /usr/local/bin/composer
# chmod +x /usr/local/bin/composer
exit

4. We will install CodeIgniter.
Go to the root directory HTML.

# cd /var/www/html/

5. Clone CodeIgniter from its git repository.

# git clone https://github.com/bcit-ci/CodeIgniter.git

6. We will install the required dependencies running composer.

# composer install

7. Provide file ownership of files to the Apache user.

# chown -R apache:apache /var/www/html/

8. We will configure the base URL by editing the config.php file.

# vi /var/www/html/application/config/config.php

9. Locate the below line.

$config['base_url'] = '';

10. Modify this line by adding your application URL in the quotes.

$config['base_url'] = 'http://192.168.2.152';

11. To configure the CodeIgniter Database connection setting, edit the following file with your preferred text editor – 

# vi /var/www/html/application/config/database.php

12. Locate the path given below – 

$db['default'] = array(
'dsn'   => '',
'hostname' => 'localhost',
'username' => '',
'password' => '',
'database' => '',
'dbdriver' => 'mysqli',

Change it to – 

$db['default'] = array(
'dsn'   => '',
'hostname' => 'localhost',
'username' => 'mycode_db',
'password' => 'your-db-user-password',
'database' => 'mycodeusr',
'dbdriver' => 'mysqli',

13. Once you are done with the changes, save this file.
Access the URL you added earlier in base_url and verify that CodeIgniter is working.

 


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