Stackdriver Logging Client - Class PsrLogger (1.26.0)

Reference documentation and code samples for the Stackdriver Logging Client class PsrLogger.

A PSR-3 compliant logger used to write entries to Google Stackdriver Logging.

Example:

use Google\Cloud\Logging\LoggingClient;

$logging = new LoggingClient();

$psrLogger = $logging->psrLogger('my-log');

// Write entries with background batching.
use Google\Cloud\Logging\LoggingClient;

$logging = new LoggingClient();

$psrLogger = $logging->psrLogger('my-log', [
    'batchEnabled' => true
]);

Methods

__construct

Parameters
Name	Description
`logger`	`Google\Cloud\Logging\Logger` The logger used to write entries.
`messageKey`	`string` The key in the `jsonPayload` used to contain the logged message. Defaults to `message`.
`options`	`array` Configuration options.
`↳ metadataProvider`	`MetadataProviderInterface` Defaults to An automatically chosen provider, based on detected environment settings.
`↳ batchEnabled`	`bool` Determines whether or not to use background batching. Defaults to `false`. Note that this option is currently considered experimental and is subject to change.
`↳ debugOutputResource`	`resource` A resource to output debug output to.
`↳ debugOutput`	`bool` Whether or not to output debug information. Please note debug output currently only applies in CLI based applications. Defaults to `false`. Applies only when `batchEnabled` is set to `true`.
`↳ batchOptions`	`array` A set of options for a BatchJob. Google\Cloud\Core\Batch\BatchJob::__construct() for more details. Defaults to ['batchSize' => 1000, 'callPeriod' => 2.0, 'numWorkers' => 2]. Applies only when `batchEnabled` is set to `true`.
`↳ clientConfig`	`array` Configuration options for the Logging client used to handle processing of batch items. For valid options please see Google\Cloud\Logging\LoggingClient::__construct(). Applies only when `batchEnabled` is set to `true`.
`↳ batchRunner`	`BatchRunner` A BatchRunner object. Mainly used for the tests to inject a mock. Defaults to a newly created BatchRunner. Applies only when `batchEnabled` is set to `true`.
`↳ closureSerializer`	`ClosureSerializerInterface` An implementation responsible for serializing closures used in the `$clientConfig`. This is especially important when using the batch daemon. Defaults to Google\Cloud\Logging\Google\Cloud\Core\Batch\OpisClosureSerializer if the `opis/closure` library is installed.

emergency

Log an emergency entry.

Example:

$psrLogger->emergency('emergency message');

Parameters
Name	Description
`message`	`string` The message to log.
`context`	`array` [optional] Please see {@see \Google\Cloud\Logging\Google\Cloud\Logging\PsrLogger::log()} for the available options.

Returns
Type	Description
`void`

alert

Log an alert entry.

Example:

$psrLogger->alert('alert message');

Parameters
Name	Description
`message`	`string` The message to log.
`context`	`array` [optional] Please see {@see \Google\Cloud\Logging\Google\Cloud\Logging\PsrLogger::log()} for the available options.

Returns
Type	Description
`void`

critical

Log a critical entry.

Example:

$psrLogger->critical('critical message');

Parameters
Name	Description
`message`	`string` The message to log.
`context`	`array` [optional] Please see {@see \Google\Cloud\Logging\Google\Cloud\Logging\PsrLogger::log()} for the available options.

Returns
Type	Description
`void`

error

Log an error entry.

Example:

$psrLogger->error('error message');

Parameters
Name	Description
`message`	`string` The message to log.
`context`	`array` [optional] Please see {@see \Google\Cloud\Logging\Google\Cloud\Logging\PsrLogger::log()} for the available options.

Returns
Type	Description
`void`

warning

Log a warning entry.

Example:

$psrLogger->warning('warning message');

Parameters
Name	Description
`message`	`string` The message to log.
`context`	`array` [optional] Please see {@see \Google\Cloud\Logging\Google\Cloud\Logging\PsrLogger::log()} for the available options.

Returns
Type	Description
`void`

notice

Log a notice entry.

Example:

$psrLogger->notice('notice message');

Parameters
Name	Description
`message`	`string` The message to log.
`context`	`array` [optional] Please see {@see \Google\Cloud\Logging\Google\Cloud\Logging\PsrLogger::log()} for the available options.

Returns
Type	Description
`void`

info

Log an info entry.

Example:

$psrLogger->info('info message');

Parameters
Name	Description
`message`	`string` The message to log.
`context`	`array` [optional] Please see {@see \Google\Cloud\Logging\Google\Cloud\Logging\PsrLogger::log()} for the available options.

Returns
Type	Description
`void`

debug

Log a debug entry.

Example:

$psrLogger->debug('debug message');

Parameters
Name	Description
`message`	`string` The message to log.
`context`	`array` [optional] Please see {@see \Google\Cloud\Logging\Google\Cloud\Logging\PsrLogger::log()} for the available options.

Returns
Type	Description
`void`

log

Write a log entry.

Example:

use Google\Cloud\Logging\Logger;

$psrLogger->log(Logger::ALERT, 'alert message');

// Write a log entry using the context array with placeholders.
use Google\Cloud\Logging\Logger;

$psrLogger->log(Logger::ALERT, 'alert: {message}', [
    'message' => 'my alert message'
]);

// Log information regarding an HTTP request
use Google\Cloud\Logging\Logger;

$psrLogger->log(Logger::ALERT, 'alert message', [
    'stackdriverOptions' => [
        'httpRequest' => [
            'requestMethod' => 'GET'
        ]
    ]
]);

Parameters
Name	Description
`level`	`string\|int` The severity of the log entry.
`message`	`string` The message to log.
`context`	`array` Context is an associative array which can include placeholders to be used in the `$message`. Placeholders must be delimited with a single opening brace `{` and a single closing brace `}`. The context will be added as additional information on the `jsonPayload`. Please note that the key `stackdriverOptions` is reserved for logging Google Stackdriver specific data.
`↳ stackdriverOptions`	`array` ['resource'] The monitored resource to associate this log entry with. Defaults to type global.
`↳ stackdriverOptions`	`array` ['httpRequest'] Information about the HTTP request associated with this log entry, if applicable. Please see the API docs for more information.
`↳ stackdriverOptions`	`array` ['labels'] A set of user-defined (key, value) data that provides additional information about the log entry.
`↳ stackdriverOptions`	`array` ['operation'] Additional information about a potentially long-running operation with which a log entry is associated. Please see the API docs for more information.
`↳ stackdriverOptions`	`string` ['insertId'] A unique identifier for the log entry.
`↳ stackdriverOptions`	`DateTimeInterface\|Timestamp\|string\|null` ['timestamp'] The timestamp associated with this entry. If providing a string it must be in RFC3339 UTC "Zulu" format. Example: "2014-10-02T15:01:23.045123456Z". If explicitly set to `null` the timestamp will be generated by the server at the moment the entry is received (with nanosecond precision). Defaults to the current time, generated by the client with microsecond precision.

Returns
Type	Description
`void`

getMetadataProvider

Return the MetadataProvider.

Returns
Type	Description
`Google\Cloud\Core\Report\MetadataProviderInterface`

serialize

Serializes data.

Returns
Type	Description
`string`

unserialize

Unserializes data.

Parameter
Name	Description
`data`	`mixed`

__serialize

__unserialize

Parameter
Name	Description
`data`	`array`

Constants

ID_TEMPLATE

Value: 'stackdriver-logging-%s'