Documentation

LoggerInterface
in

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.

Table of Contents

alert()  : void
Action must be taken immediately.
critical()  : void
Critical conditions.
debug()  : void
Detailed debug information.
emergency()  : void
System is unusable.
error()  : void
Runtime errors that do not require immediate action but should typically be logged and monitored.
info()  : void
Interesting events.
log()  : void
Logs with an arbitrary level.
notice()  : void
Normal but significant events.
warning()  : void
Exceptional occurrences that are not errors.

Methods

alert()

Action must be taken immediately.

public alert(string $message[, array<string|int, mixed> $context = array() ]) : void

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

Parameters
$message : string
$context : array<string|int, mixed> = array()
Return values
void —

critical()

Critical conditions.

public critical(string $message[, array<string|int, mixed> $context = array() ]) : void

Example: Application component unavailable, unexpected exception.

Parameters
$message : string
$context : array<string|int, mixed> = array()
Return values
void —

debug()

Detailed debug information.

public debug(string $message[, array<string|int, mixed> $context = array() ]) : void
Parameters
$message : string
$context : array<string|int, mixed> = array()
Return values
void —

emergency()

System is unusable.

public emergency(string $message[, array<string|int, mixed> $context = array() ]) : void
Parameters
$message : string
$context : array<string|int, mixed> = array()
Return values
void —

error()

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

public error(string $message[, array<string|int, mixed> $context = array() ]) : void
Parameters
$message : string
$context : array<string|int, mixed> = array()
Return values
void —

info()

Interesting events.

public info(string $message[, array<string|int, mixed> $context = array() ]) : void

Example: User logs in, SQL logs.

Parameters
$message : string
$context : array<string|int, mixed> = array()
Return values
void —

log()

Logs with an arbitrary level.

public log(mixed $level, string $message[, array<string|int, mixed> $context = array() ]) : void
Parameters
$level : mixed
$message : string
$context : array<string|int, mixed> = array()
Tags
throws
InvalidArgumentException
Return values
void —

notice()

Normal but significant events.

public notice(string $message[, array<string|int, mixed> $context = array() ]) : void
Parameters
$message : string
$context : array<string|int, mixed> = array()
Return values
void —

warning()

Exceptional occurrences that are not errors.

public warning(string $message[, array<string|int, mixed> $context = array() ]) : void

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

Parameters
$message : string
$context : array<string|int, mixed> = array()
Return values
void —

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