Seldaek/monolog
Monolog
Monolog is a logging library that implements the PSR-3 standard to ensure interoperable log handling across PHP applications. It provides a standardized interface for managing log records, allowing the logging system to remain replaceable across different libraries and frameworks.
The library features a routing engine that distributes log messages to multiple destinations, including files, sockets, databases, and external web services. It enables severity-based routing and integration with third-party cloud platforms, messaging apps, and email services for centralized log management.
To support observability, the project includes tools for transforming log records into structured formats such as JSON or HTML. It also provides mechanisms for context enrichment, injecting metadata like HTTP headers and execution timers into logs to assist with debugging and compliance audits.
Features
- Logging Interfaces - Implements the PSR-3 standard to ensure interoperable log handling and replaceability across PHP libraries.
- Log Formatters - Transforms raw log records into structured formats like JSON or HTML for ingestion by observability pipelines.
- Logging Libraries - Provides a standardized logging library with interfaces for recording system events and diagnostic messages.
- PHP Standard Interface Implementations - Implements PHP-FIG standards to ensure logging behavior remains interoperable and replaceable across libraries.
- Application Log Routing - Routes application log messages to multiple destinations based on severity levels and operational rules.
- Multi-Transport Log Managers - Routes log data to multiple independent outputs via pluggable transport modules.
- Storage Backend Adapters - Provides a consistent adapter interface for swapping local log storage with diverse external persistent backends.
- Persistent Log Context - Attaches predefined metadata fields to the logger that are automatically included in all log entries.
- Custom Log Formatting - Enables the definition of custom layouts and the injection of user-defined types into log output.
- Severity Level Filtering - Controls log output by routing messages to specific backends based on their severity level.
- Centralized Logging Systems - Routes logs to external databases, cloud platforms, and messaging services for centralized system monitoring.
- Contextual Logging - Automatically injects request-specific metadata and execution timers into log entries for improved traceability.
- Observability Platform Log Exporting - Forwards internal system logs to external observability platforms and cloud services for centralized analysis.
- Telemetry Metadata Definitions - Attaches source identifiers, HTTP headers, and execution timers as metadata to telemetry data.
- Request-Scoped Log Context - Injects request-specific metadata and trace identifiers into log entries to track execution flows.
- Automation and Integrations - Logging handler for sending application logs to Slack.
- Geolocation and Utilities - Logs application events to various destinations.
