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[[enabling_logger]]
=== Enabling the Logger
Elasticsearch-PHP supports logging, but it is not enabled by default for
performance reasons. If you wish to enable logging, you need to select a logging
implementation, install it, then enable the logger in the Client. The
recommended logger is https://github.com/Seldaek/monolog[Monolog], but any
logger that implements the `PSR/Log` interface works.
You might have noticed that Monolog was suggested during installation. To begin
using Monolog, add it to your `composer.json`:
[source,json]
----------------------------
{
"require": {
...
"elasticsearch/elasticsearch" : "~5.0",
"monolog/monolog": "~1.0"
}
}
----------------------------
And then update your Composer installation:
[source,shell]
----------------------------
php composer.phar update
----------------------------
Once Monolog (or another logger) is installed, you need to create a log object
and inject it into the client:
[source,php]
----
use Monolog\Logger;
use Monolog\Handler\StreamHandler;
$logger = new Logger('name');
$logger->pushHandler(new StreamHandler('path/to/your.log', Logger::WARNING));
$client = ClientBuilder::create() // Instantiate a new ClientBuilder
->setLogger($logger) // Set your custom logger
->build(); // Build the client object
----