CodeIgniter Q & A


What is CodeIgniter’s built-in logging system?

CodeIgniter’s built-in logging system is a valuable feature that helps developers track and record important information about the execution of their applications. This logging system is designed to assist in debugging, monitoring, and analyzing the behavior of your CodeIgniter application, making it easier to identify and resolve issues. Here’s a closer look at the key aspects of CodeIgniter’s logging system:


  1. Configurable Logging Levels:

   – CodeIgniter offers different logging levels, including DEBUG, INFO, ERROR, and more. You can specify the level of detail you want to log, allowing you to focus on specific aspects of your application’s behavior. For example, you can use DEBUG for detailed debugging information during development and ERROR for critical errors in production.


  1. Multiple Logging Handlers:

   – CodeIgniter supports various logging handlers, such as files, databases, or even custom handlers. You can configure the logging system to store logs in different locations or formats based on your requirements. This flexibility is useful when you need to manage logs across multiple environments.


  1. Log Messages and Timestamps:

   – Each log entry includes a timestamp, making it easy to track when an event occurred. Log messages can include information like error messages, application flow, variable values, or any other details you find relevant for troubleshooting.


  1. Contextual Logging:

   – Developers can add log messages at different points in their code, providing context for each log entry. This helps in understanding the sequence of events leading to a particular log entry and aids in pinpointing the source of issues.


  1. Log Rotation and Management:

   – For file-based logging, CodeIgniter allows you to configure log rotation and management settings. This prevents log files from growing indefinitely and consuming excessive disk space. You can specify the maximum log file size or the number of log files to keep.


  1. Security Considerations:

   – CodeIgniter’s logging system is designed with security in mind. It allows sensitive information to be redacted or masked to prevent the exposure of confidential data in logs. This ensures that your application remains secure even when debugging is enabled.


  1. Integration with Error Handling:

   – CodeIgniter seamlessly integrates its logging system with error handling. When an error occurs in your application, relevant details can be logged automatically, helping you identify and address issues quickly.


CodeIgniter’s built-in logging system is a powerful tool for developers to monitor and troubleshoot their applications. By configuring the logging levels, handlers, and log message details, you can gain insights into your application’s behavior, diagnose problems, and improve the overall reliability and performance of your CodeIgniter projects.

Previously at
Flag Argentina
time icon
Experienced Full Stack Systems Analyst, Proficient in CodeIgniter with extensive 5+ years experience. Strong in SQL, Git, Agile.