Debug

It is possible to attach to Client any PSR-3 Logger to obtain all queries performed, using the setLogger() method.

class BasicLogger extends \Psr\Log\AbstractLogger
{
    public function log($level, \Stringable|string $message, array $context = []): void
    {
        echo $message . "\n";
    }
}

$client->setLogger(new BasicLogger());

Plus, SPARQLer includes a DebugBar custom Data Collector to collect and display all executed SPARQL queries directly in your web page.

To enable it, just call the enableDebugBar() method of a Client and pass your instance of DebugBar.

use DebugBar\StandardDebugBar;
$debugbar = new StandardDebugBar();
$client->enableDebugBar($debugbar);