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<?php

/*
 * This file is part of the Predis package.
 *
 * (c) Daniele Alessandri <suppakilla@gmail.com>
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 */

namespace Predis\Protocol\Text;

use Predis\Command\CommandInterface;
use Predis\Protocol\CommandSerializerInterface;

/**
 * Implements a pluggable command serializer using the standard  wire protocol
 * defined by Redis.
 *
 * @link http://redis.io/topics/protocol
 * @author Daniele Alessandri <suppakilla@gmail.com>
 */
class TextCommandSerializer implements CommandSerializerInterface
{
    /**
     * {@inheritdoc}
     */
    public function serialize(CommandInterface $command)
    {
        $commandId = $command->getId();
        $arguments = $command->getArguments();

$cmdlen = strlen($commandId);
        $reqlen = count($arguments) + 1;

$buffer = "*{$reqlen}\r\n\${$cmdlen}\r\n{$commandId}\r\n";

for ($i = 0, $reqlen--; $i < $reqlen; $i++) {
            $argument = $arguments[$i];
            $arglen = strlen($argument);
            $buffer .= "\${$arglen}\r\n{$argument}\r\n";
        }

return $buffer;
    }
}

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