| Fully Qualified Name: | Psr\Log\LoggerInterface |
Describes a logger instance
The message MUST be a string or object implementing __toString().
The message MAY contain placeholders in the form: {foo} where foo will be replaced by the context data in key "foo".
The context array can contain arbitrary data, the only assumption that can be made by implementors is that if an Exception instance is given to produce a stack trace, it MUST be in a key named "exception".
See https://github.com/php-fig/fig-standards/blob/master/accepted/PSR-3-logger-interface.md for the full interface specification.
| Name | Description | Defined By |
|---|---|---|
| alert() | Action must be taken immediately. | LoggerInterface |
| critical() | Critical conditions. | LoggerInterface |
| debug() | Detailed debug information. | LoggerInterface |
| emergency() | System is unusable. | LoggerInterface |
| error() | Runtime errors that do not require immediate action but should typically be logged and monitored. | LoggerInterface |
| info() | Interesting events. | LoggerInterface |
| log() | Logs with an arbitrary level. | LoggerInterface |
| notice() | Normal but significant events. | LoggerInterface |
| warning() | Exceptional occurrences that are not errors. | LoggerInterface |
Action must be taken immediately.
Example: Entire website down, database unavailable, etc. This should trigger the SMS alerts and wake you up.
| Parameter Name | Type | Description |
|---|---|---|
| $message | string | |
| $context | array |
Returns: null
Critical conditions.
Example: Application component unavailable, unexpected exception.
| Parameter Name | Type | Description |
|---|---|---|
| $message | string | |
| $context | array |
Returns: null
Detailed debug information.
| Parameter Name | Type | Description |
|---|---|---|
| $message | string | |
| $context | array |
Returns: null
System is unusable.
| Parameter Name | Type | Description |
|---|---|---|
| $message | string | |
| $context | array |
Returns: null
Runtime errors that do not require immediate action but should typically be logged and monitored.
| Parameter Name | Type | Description |
|---|---|---|
| $message | string | |
| $context | array |
Returns: null
Interesting events.
Example: User logs in, SQL logs.
| Parameter Name | Type | Description |
|---|---|---|
| $message | string | |
| $context | array |
Returns: null
Logs with an arbitrary level.
| Parameter Name | Type | Description |
|---|---|---|
| $level | mixed | |
| $message | string | |
| $context | array |
Returns: null
Normal but significant events.
| Parameter Name | Type | Description |
|---|---|---|
| $message | string | |
| $context | array |
Returns: null
Exceptional occurrences that are not errors.
Example: Use of deprecated APIs, poor use of an API, undesirable things that are not necessarily wrong.
| Parameter Name | Type | Description |
|---|---|---|
| $message | string | |
| $context | array |
Returns: null