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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.

  • Full name: \Psr\Log\LoggerInterface

Methods

emergency

System is unusable.

public emergency(string|\Stringable $message, array $context = []): void

Parameters:

Parameter Type Description
$message string|\Stringable
$context array

alert

Action must be taken immediately.

public alert(string|\Stringable $message, array $context = []): void

Example: Entire website down, database unavailable, etc. This should trigger the SMS alerts and wake you up.

Parameters:

Parameter Type Description
$message string|\Stringable
$context array

critical

Critical conditions.

public critical(string|\Stringable $message, array $context = []): void

Example: Application component unavailable, unexpected exception.

Parameters:

Parameter Type Description
$message string|\Stringable
$context array

error

Runtime errors that do not require immediate action but should typically be logged and monitored.

public error(string|\Stringable $message, array $context = []): void

Parameters:

Parameter Type Description
$message string|\Stringable
$context array

warning

Exceptional occurrences that are not errors.

public warning(string|\Stringable $message, array $context = []): void

Example: Use of deprecated APIs, poor use of an API, undesirable things that are not necessarily wrong.

Parameters:

Parameter Type Description
$message string|\Stringable
$context array

notice

Normal but significant events.

public notice(string|\Stringable $message, array $context = []): void

Parameters:

Parameter Type Description
$message string|\Stringable
$context array

info

Interesting events.

public info(string|\Stringable $message, array $context = []): void

Example: User logs in, SQL logs.

Parameters:

Parameter Type Description
$message string|\Stringable
$context array

debug

Detailed debug information.

public debug(string|\Stringable $message, array $context = []): void

Parameters:

Parameter Type Description
$message string|\Stringable
$context array

log

Logs with an arbitrary level.

public log(mixed $level, string|\Stringable $message, array $context = []): void

Parameters:

Parameter Type Description
$level mixed
$message string|\Stringable
$context array

Throws:

Automatically generated on 2025-03-18