php-guzzleHow to keep alive with Guzzle in PHP?

Guzzle is a PHP HTTP client that makes it easy to send HTTP requests and trivial to integrate with web services. To keep alive with Guzzle in PHP, you can use the Connection: keep-alive header.

$client = new GuzzleHttp\Client();
$response = $client->request('GET', 'http://example.com', [
    'headers' => [
        'Connection' => 'keep-alive'
    ]
]);

The output of the above code will be an instance of GuzzleHttp\Psr7\Response class.

Code explanation

1. $client = new GuzzleHttp\Client(); - This creates a new instance of the Guzzle client.
2. $response = $client->request('GET', 'http://example.com', [ - This sends a GET request to the specified URL.
3. 'headers' => [ - This is an array of headers to be sent with the request.
4. 'Connection' => 'keep-alive' - This sets the Connection header to keep-alive.
5. ]); - This closes the array of headers and the request options.

Helpful links

• Guzzle Documentation
• HTTP/1.1 RFC

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