References - Chatbot - Chatbot sessions

Chatbot Session Management Guide

Our chatbot utilizes text files to manage user sessions efficiently. Every time a user interacts with the chatbot, a new text file named with their IP address and date is created to log their session data.

Using file-based sessions boosts performance and offers a seamless experience for your users:

• Persistent Memory: Sessions remain intact even if the user clears their browser cache.

• Convenience: Users only need to complete a CAPTCHA once, and the chatbot effortlessly remembers their last inputs.

Setup & Maintenance Best Practices

• Set Directory Permissions: Ensure your sessions folder has write permissions enabled so the system can automatically create and update session files.

• Routine Cleanup: To conserve server storage over time, we recommend clearing out old text files from the session directory periodically.

How to Use the Session API

1. Saving a Basic Session

To store a value, call write_session() with your desired session name and value:

PHP

write_session('your_session_name', 'your_session_value');

2. Retrieving a Session

To fetch a stored session, use use_session(). This function returns the stored value if it exists, or null if it does not. You can easily check it using a conditional statement:

PHP

if (use_session('your_session_name')) {
    echo 'Found the session!';
}

3. Working with Session Arrays

When updating an existing session array, simply retrieve the existing data first, modify the array, and save it back:

PHP

// Retrieve existing values
$old_values = use_session('session_name');

// Define keys to initialize
$accepted = array('other', 'nom', 'ver', 'adj');

foreach ($accepted as $key => $value) {
    $old_values[$value] = array();
}

// Save the updated array back to the session
write_session('session_name', $old_values);

Source : learningbot

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