interface LoggerInterface (View source)

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

void
emergency(string $message, array $context = array())

System is unusable.

void
alert(string $message, array $context = array())

Action must be taken immediately.

void
critical(string $message, array $context = array())

Critical conditions.

void
error(string $message, array $context = array())

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

void
warning(string $message, array $context = array())

Exceptional occurrences that are not errors.

void
notice(string $message, array $context = array())

Normal but significant events.

void
info(string $message, array $context = array())

Interesting events.

void
debug(string $message, array $context = array())

Detailed debug information.

void
log(mixed $level, string $message, array $context = array())

Logs with an arbitrary level.

Details

void emergency(string $message, array $context = array())

System is unusable.

Parameters

string $message
array $context

Return Value

void

void 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.

Parameters

string $message
array $context

Return Value

void

void critical(string $message, array $context = array())

Critical conditions.

Example: Application component unavailable, unexpected exception.

Parameters

string $message
array $context

Return Value

void

void error(string $message, array $context = array())

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

Parameters

string $message
array $context

Return Value

void

void 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.

Parameters

string $message
array $context

Return Value

void

void notice(string $message, array $context = array())

Normal but significant events.

Parameters

string $message
array $context

Return Value

void

void info(string $message, array $context = array())

Interesting events.

Example: User logs in, SQL logs.

Parameters

string $message
array $context

Return Value

void

void debug(string $message, array $context = array())

Detailed debug information.

Parameters

string $message
array $context

Return Value

void

void log(mixed $level, string $message, array $context = array())

Logs with an arbitrary level.

Parameters

mixed $level
string $message
array $context

Return Value

void