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    <h3>Editing: Connection.php</h3>
    <textarea name="content" rows="20" cols="80">&lt;?php

/*
 * This file is part of the Symfony package.
 *
 * (c) Fabien Potencier &lt;fabien@symfony.com&gt;
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 */

namespace Symfony\Component\VarDumper\Server;

use Symfony\Component\VarDumper\Cloner\Data;
use Symfony\Component\VarDumper\Dumper\ContextProvider\ContextProviderInterface;

/**
 * Forwards serialized Data clones to a server.
 *
 * @author Maxime Steinhausser &lt;maxime.steinhausser@gmail.com&gt;
 */
class Connection
{
    private $host;
    private $contextProviders;

    /**
     * @var resource|null
     */
    private $socket;

    /**
     * @param string                     $host             The server host
     * @param ContextProviderInterface[] $contextProviders Context providers indexed by context name
     */
    public function __construct(string $host, array $contextProviders = [])
    {
        if (!str_contains($host, '://')) {
            $host = 'tcp://'.$host;
        }

        $this-&gt;host = $host;
        $this-&gt;contextProviders = $contextProviders;
    }

    public function getContextProviders(): array
    {
        return $this-&gt;contextProviders;
    }

    public function write(Data $data): bool
    {
        $socketIsFresh = !$this-&gt;socket;
        if (!$this-&gt;socket = $this-&gt;socket ?: $this-&gt;createSocket()) {
            return false;
        }

        $context = ['timestamp' =&gt; microtime(true)];
        foreach ($this-&gt;contextProviders as $name =&gt; $provider) {
            $context[$name] = $provider-&gt;getContext();
        }
        $context = array_filter($context);
        $encodedPayload = base64_encode(serialize([$data, $context])).&quot;\n&quot;;

        set_error_handler([self::class, 'nullErrorHandler']);
        try {
            if (-1 !== stream_socket_sendto($this-&gt;socket, $encodedPayload)) {
                return true;
            }
            if (!$socketIsFresh) {
                stream_socket_shutdown($this-&gt;socket, \STREAM_SHUT_RDWR);
                fclose($this-&gt;socket);
                $this-&gt;socket = $this-&gt;createSocket();
            }
            if (-1 !== stream_socket_sendto($this-&gt;socket, $encodedPayload)) {
                return true;
            }
        } finally {
            restore_error_handler();
        }

        return false;
    }

    private static function nullErrorHandler(int $t, string $m)
    {
        // no-op
    }

    private function createSocket()
    {
        set_error_handler([self::class, 'nullErrorHandler']);
        try {
            return stream_socket_client($this-&gt;host, $errno, $errstr, 3);
        } finally {
            restore_error_handler();
        }
    }
}
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