emergency()
emergency(string $message, array $context = array()) : void
System is unusable.
Parameters
| string | $message | |
| array | $context |
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.
<?php
namespace Psr\Log;
/**
* 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.
*/
interface LoggerInterface
{
/**
* System is unusable.
*
* @param string $message
* @param mixed[] $context
*
* @return void
*/
public function emergency($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.
*
* @param string $message
* @param mixed[] $context
*
* @return void
*/
public function alert($message, array $context = array());
/**
* Critical conditions.
*
* Example: Application component unavailable, unexpected exception.
*
* @param string $message
* @param mixed[] $context
*
* @return void
*/
public function critical($message, array $context = array());
/**
* Runtime errors that do not require immediate action but should typically
* be logged and monitored.
*
* @param string $message
* @param mixed[] $context
*
* @return void
*/
public function error($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.
*
* @param string $message
* @param mixed[] $context
*
* @return void
*/
public function warning($message, array $context = array());
/**
* Normal but significant events.
*
* @param string $message
* @param mixed[] $context
*
* @return void
*/
public function notice($message, array $context = array());
/**
* Interesting events.
*
* Example: User logs in, SQL logs.
*
* @param string $message
* @param mixed[] $context
*
* @return void
*/
public function info($message, array $context = array());
/**
* Detailed debug information.
*
* @param string $message
* @param mixed[] $context
*
* @return void
*/
public function debug($message, array $context = array());
/**
* Logs with an arbitrary level.
*
* @param mixed $level
* @param string $message
* @param mixed[] $context
*
* @return void
*
* @throws \Psr\Log\InvalidArgumentException
*/
public function log($level, $message, array $context = array());
}