LoggerInterface
interface 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.
Methods
System is unusable.
Action must be taken immediately.
Critical conditions.
Runtime errors that do not require immediate action but should typically be logged and monitored.
Exceptional occurrences that are not errors.
Normal but significant events.
Interesting events.
Detailed debug information.
Logs with an arbitrary level.
Details
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emergency(string $message, array $context = array())
System is unusable.
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alert(string $message, array $context = array())
Action must be taken immediately.
Example: Entire website down, database unavailable, etc. This should trigger the SMS alerts and wake you up.
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critical(string $message, array $context = array())
Critical conditions.
Example: Application component unavailable, unexpected exception.
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error(string $message, array $context = array())
Runtime errors that do not require immediate action but should typically be logged and monitored.
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warning(string $message, array $context = array())
Exceptional occurrences that are not errors.
Example: Use of deprecated APIs, poor use of an API, undesirable things that are not necessarily wrong.
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notice(string $message, array $context = array())
Normal but significant events.
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info(string $message, array $context = array())
Interesting events.
Example: User logs in, SQL logs.
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debug(string $message, array $context = array())
Detailed debug information.
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log(mixed $level, string $message, array $context = array())
Logs with an arbitrary level.