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<?php
/*
* This file is part of the Predis package.
*
* (c) 2009-2020 Daniele Alessandri
* (c) 2021-2025 Till Krüss
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
require __DIR__ . '/shared.php';
// This is an example of how you can easily extend an existing connection class
// and trace the execution of commands for debugging purposes. This can be quite
// useful as a starting point to understand how your application interacts with
// Redis.
use Predis\Command\CommandInterface;
use Predis\Connection\StreamConnection;
class SimpleDebuggableConnection extends StreamConnection
{
private $tstart = 0;
private $debugBuffer = [];
public function connect()
{
$this->tstart = microtime(true);
parent::connect();
}
private function storeDebug(CommandInterface $command, $direction)
{
$firtsArg = $command->getArgument(0);
$timestamp = round(microtime(true) - $this->tstart, 4);
$debug = $command->getId();
$debug .= isset($firtsArg) ? " $firtsArg " : ' ';
$debug .= "$direction $this";
$debug .= " [{$timestamp}s]";
$this->debugBuffer[] = $debug;
}
public function writeRequest(CommandInterface $command)
{
parent::writeRequest($command);
$this->storeDebug($command, '->');
}
public function readResponse(CommandInterface $command)
{
$response = parent::readResponse($command);
$this->storeDebug($command, '<-');
return $response;
}
public function getDebugBuffer()
{
return $this->debugBuffer;
}
}
$options = [
'connections' => [
'tcp' => 'SimpleDebuggableConnection',
],
];
$client = new Predis\Client($single_server, $options);
$client->set('foo', 'bar');
$client->get('foo');
$client->info();
var_export($client->getConnection()->getDebugBuffer());
/* OUTPUT:
array (
0 => 'SELECT 15 -> 127.0.0.1:6379 [0.0008s]',
1 => 'SELECT 15 <- 127.0.0.1:6379 [0.001s]',
2 => 'SET foo -> 127.0.0.1:6379 [0.001s]',
3 => 'SET foo <- 127.0.0.1:6379 [0.0011s]',
4 => 'GET foo -> 127.0.0.1:6379 [0.0013s]',
5 => 'GET foo <- 127.0.0.1:6379 [0.0015s]',
6 => 'INFO -> 127.0.0.1:6379 [0.0019s]',
7 => 'INFO <- 127.0.0.1:6379 [0.0022s]',
)
*/
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