If you are using Codeigniter, you may come across the error message "'C:\Windows\Temp' is not writable" when trying to start a session. This error can be caused by a variety of issues, such as incorrect file permissions or an incorrect directory path. In this article, we'll explore some common causes of this error and provide solutions to fix it. By following the troubleshooting steps outlined in this article, you can ensure that your Codeigniter session is functioning properly and avoid any potential issues with session management.
By default, Codeigniter stores session data in a file located in the system's temporary directory. However, you can also configure it to store session data in a database instead of the file system.
To store session data in a database, you need to first create a table in your database to hold the session data. You can do this by running the following SQL command:
CREATE TABLE IF NOT EXISTS `ci_sessions` ( `id` varchar(128) NOT NULL, `ip_address` varchar(45) NOT NULL, `timestamp` int(10) unsigned NOT NULL DEFAULT '0', `data` blob NOT NULL, PRIMARY KEY (`id`), KEY `ci_sessions_timestamp` (`timestamp`) );
Once the table is created, you need to configure Codeigniter to use the database for session storage. Open the config.php file located in the application/config directory and modify the following lines:
$config['sess_driver'] = 'database'; $config['sess_save_path'] = 'ci_sessions';
Make sure that the sess_driver value is set to 'database' and the sess_save_path value is set to the name of the table you created (ci_sessions in this case).
Finally, you need to create a database configuration file in the application/config directory with your database credentials. The file should be named database.php and contain the following:
<?php defined('BASEPATH') OR exit('No direct script access allowed'); $active_group = 'default'; $query_builder = TRUE; $db['default'] = array( 'dsn' => '', 'hostname' => 'localhost', 'username' => 'your_username', 'password' => 'your_password', 'database' => 'your_database_name', 'dbdriver' => 'mysqli', 'dbprefix' => '', 'pconnect' => FALSE, 'db_debug' => (ENVIRONMENT !== 'production'), 'cache_on' => FALSE, 'cachedir' => '', 'char_set' => 'utf8', 'dbcollat' => 'utf8_general_ci', 'swap_pre' => '', 'encrypt' => FALSE, 'compress' => FALSE, 'stricton' => FALSE, 'failover' => array(), 'save_queries' => TRUE );
Replace your_username, your_password, and your_database_name with your actual database credentials.
That's it! Now, Codeigniter will store session data in the database instead of the file system.