# 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.

#### Direct known implementers

OpenCloud\Common\Log\AbstractLogger

#### Indirect known implementers

OpenCloud\Common\Log\Logger
Namespace: OpenCloud\Common\Log
Located at OpenCloud/Common/Log/LoggerInterface.php

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