Question 1

How do I send an asynchronous request with Guzzle?

Accepted Answer

Use the sendAsync method, which returns a promise. The README shows an example: create a Request object, call sendAsync, and handle the response with then() and wait() for completion.

Question 2

What's the difference between Guzzle and using plain PHP cURL?

Accepted Answer

Guzzle provides a higher-level, object-oriented API with PSR compliance and transport abstraction, while raw cURL requires manual handling of options and lacks standardization. Guzzle simplifies complex tasks like middleware and async requests.

Question 3

Does Guzzle work with PHP 8?

Accepted Answer

Yes, Guzzle 7.x supports PHP versions up to 8.5, as indicated in the version guidance table. Always check the latest documentation for compatibility with newer PHP releases.

Question 4

How to add custom headers in Guzzle requests?

Accepted Answer

Pass an array of headers in the request options. For example, in the request method, use the 'headers' key with an associative array of header names and values, similar to PSR-7 standards.

Question 5

Guzzle or Symfony HTTP Client for a new project?

Accepted Answer

Guzzle is more established with broader PSR compliance and a rich middleware system, while Symfony HTTP Client is lighter and tightly integrated with Symfony frameworks. Choose Guzzle for standards-driven projects or Symfony for minimal Symfony-based apps.

Question 6

How to handle errors and exceptions in Guzzle?

Accepted Answer

Guzzle throws exceptions for HTTP errors (e.g., 4xx or 5xx responses) by default, which can be caught with try-catch blocks. You can also customize error handling via middleware or request options for more control.

Guzzle

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