Guzzle is a PHP HTTP client for sending requests to APIs and other web services. Install it with Composer, then use its client to make synchronous or asynchronous requests; PSR-7 messages, PSR-18 interoperability, and middleware provide ways to work with other PHP components and extend request behavior.
What Guzzle does
Guzzle is an extensible PHP library for making HTTP requests. It handles common work such as query strings, form or JSON data, cookies, and streaming uploads and downloads, so PHP applications can communicate with web services without building each request from low-level transport details. The project describes it as a PHP HTTP client that makes it easy to send HTTP requests and integrate with web services: Guzzle project README.
Guzzle abstracts the transport layer. Application code can use the client API without being tied directly to cURL, PHP streams, sockets, or a particular event loop. The available transport and behavior depend on the handler and configuration used by the application.
Install Guzzle with Composer
From the root of your PHP project, run:
composer require guzzlehttp/guzzleComposer adds Guzzle as a project dependency and resolves a release compatible with the project’s PHP and dependency constraints. Check the version support guidance before choosing or upgrading a release.
Quick wins for a faster PC:
Fix the driver behind crashes, sound loss and screen glitchesFind Drivers →Clear out junk files and repair common Windows errorsFree Scan →#1 Best Overall
- Read Before You Buy — No Video Output: These adapters support charging and USB 2.0 data transfer, but cannot transmit video signals. Except for standard USB webcams (which use USB data only), they are not compatible with HDMI/DisplayPort cables, video-capable USB-C hubs, or docking stations with video output.
- Convert USB-A Ports to USB-C: Designed to connect USB-C earphones, cables, flash drives, card readers, and other USB-C accessories to standard USB-A ports. Plug-and-play with no drivers or software required.
- Aluminum Alloy Housing: Built with a sturdy aluminum alloy shell that aids in heat dissipation and protects against daily wear and scratches. Designed to maintain a stable and secure connection.
- Compact & Travel-Friendly: The ultra-compact design allows the adapter to stay plugged into your device without blocking adjacent ports or adding bulk, reducing wear and tear on your original USB ports.
- 12-Month Warranty: Backed by a 12-month manufacturer warranty for peace of mind. Designed to meet strict quality control standards for reliable everyday performance.
Send a basic request
Create a client, request a URL, and inspect the returned response:
<?php
$client = new GuzzleHttpClient();
$response = $client->request('GET', 'https://api.example.com/users/123');
echo $response->getStatusCode();
echo $response->getHeaderLine('content-type');
echo $response->getBody();The response exposes the HTTP status, headers, and body. In an application, handle error statuses and exceptions according to the API and the behavior configured for the request; do not assume every response is a successful result.
Rank #2
- 5-in-1 USB-C Hub: Experience comprehensive connectivity featuring a Power Delivery input, two USB-A 2.0 ports, a USB-A 3.0 port, and an HDMI port. (Note: The USB-C power delivery input port is only for connecting an external wall charger to power your laptop and cannot power peripheral devices.)
- 90W Pass-Through Charging: Achieve optimal charging with 90W pass-through power to your laptop, supported by a total input of 100W, with the hub reserving 10W for operational efficiency. (Note: Wall charger not included.)
- Quick Data Transfers: Accelerate your productivity with rapid data transfers using a high-speed 5Gbps USB 3.0 port and two 480Mbps USB 2.0 ports.
- 4K HDMI Display: Enhance your visual experience with a hub capable of delivering 4K resolution at 30Hz in both mirror and extend modes. Please note that this hub is compatible with MacBook (macOS 12 and newer), Windows 10 and 11, ChromeOS, and laptops equipped with DP Alt Mode and Power Delivery. Note: This device is not compatible with Linux.
- What You Get: Anker USB-C Hub (5-in-1, 4K HDMI), welcome guide, 18-month warranty, and our friendly customer service.
Choose a Guzzle version that fits your PHP runtime
The project’s repository lists these release lines and PHP constraints. Release status can change, so consult the official version guidance when selecting a version or planning an upgrade.
| Guzzle release line | Repository status | PHP constraint listed |
|---|---|---|
| 8.2 | Latest | PHP >=7.4,<8.7 |
| 7.15 | Maintenance | PHP >=7.2.5,<8.7 |
| 6.5 | End of Life | PHP >=5.5,<8.0 |
Use the newest release line compatible with the application’s PHP version and dependencies where practical. Guzzle 6.5 is marked end of life in the cited guidance, so it should not be treated as a maintained choice.
Rank #3
- Sleek 7-in-1 USB-C Hub: Features an HDMI port, two USB-A 3.0 ports, and a USB-C data port, each providing 5Gbps transfer speeds. It also includes a USB-C PD input port for charging up to 100W and dual SD and TF card slots, all in a compact design.
- Flawless 4K@60Hz Video with HDMI: Delivers exceptional clarity and smoothness with its 4K@60Hz HDMI port, making it ideal for high-definition presentations and entertainment. (Note: Only the HDMI port supports video projection; the USB-C port is for data transfer only.)
- Double Up on Efficiency: The two USB-A 3.0 ports and a USB-C port support a fast 5Gbps data rate, significantly boosting your transfer speeds and improving productivity.
- Fast and Reliable 85W Charging: Offers high-capacity, speedy charging for laptops up to 85W, so you spend less time tethered to an outlet and more time being productive.
- What You Get: Anker USB-C Hub (7-in-1), welcome guide, 18-month warranty, and our friendly customer service.
How PSR-7 and PSR-18 fit in
PSR-7 messages and streams
Guzzle works with PSR-7 interfaces for HTTP requests, responses, and streams. That standardization helps it exchange messages with libraries that also use PSR-7. The companion guzzlehttp/psr7 package provides concrete request, response, URI, uploaded-file, and stream objects. Its repository notes that PSR-7 messages and URIs are immutable, while streams are mutable handles.
PSR-18 client interoperability
PSR-18 defines a common interface for sending HTTP requests. Guzzle supports PSR-18, which can make it easier to use the client where a library accepts an implementation of that standard rather than a Guzzle-specific client API. PSR-7 describes message objects; PSR-18 describes the client interface that sends them.
Rank #4
- Dual Converters, Infinite Potential：Includes 2× USB C male to USB A female adapters and 2× USB A male to USB C female adapters. Perfect for a wide range of uses—tablets with Bluetooth keyboards, expand USB ports on macbook, and more. Two different converters for all your daily needs
- Next-Level 10Gbps & 3A Charging: No more slow 480Mbps, this usb to usb c adapter has a transfer speed of up to 10Gbps, allowing you to do more transferring in less time. This usb adapter fits both USB A and USB C charger, supporting up to 3A fast charging
- Upgraded Exquisite Craftsmanship: With an aluminum alloy housing and metal connector, the usbc to usb adapter is extremely durable and sturdy. Rigorously tested to withstand more than 10,000 times of plugging and unplugging, ensuring long-lasting performance
- Broad Compatible: The usb c to usb adapter widely supports all USB C/ USB A devices like laptops, tablets, cellphones, car chargers, and phone chargers. Such as compatible with MacBook Pro/Air 2023/2022, Thunderbolt 4/3 Devices,Apple MagSafe Watch 9/8/7/SE/Ultra, iPad Pro 2022/2021, Samsung Galaxy S23/S20/S10, and iPhone 17/16/15 Pro. Plug and play
- Please Note: To reach 10Gbps speed, keep the cable under 3.3 ft. For USB A Male to USB C adapters, try flipping the USB C connector. USB C Male to USB A adapters support bidirectional 10Gbps transfer within 3.3 ft
Handlers and middleware extend request behavior
A handler performs the underlying request work. In Guzzle’s documented model, a handler receives a PSR-7 request and request options, then returns a promise that resolves to a response or rejects with an exception. Middleware wraps or composes behavior around a handler; GuzzleHttpHandlerStack::create() builds a stack with default middleware around a handler. See the Guzzle handlers and middleware documentation.
This separation is useful for cross-cutting features such as logging, authentication decoration, retries, caching, and instrumentation. Which request options work can depend on the middleware present in the stack, so a custom handler setup may not behave exactly like the default stack. Verify the relevant handler and middleware documentation when changing transports or composing a custom stack.
Recommended Free Tools
Best Value
- 5-in-1 Connectivity: Equipped with a 4K HDMI port, a 5 Gbps USB-C data port, two 5 Gbps USB-A ports, and a USB C 100W PD-IN port. Note: The USB C 100W PD-IN port supports only charging and does not support data transfer devices such as headphones or speakers.
- Powerful Pass-Through Charging: Supports up to 85W pass-through charging so you can power up your laptop while you use the hub. Note: Pass-through charging requires a charger (not included). Note: To achieve full power for iPad, we recommend using a 45W wall charger.
- Transfer Files in Seconds: Move files to and from your laptop at speeds of up to 5 Gbps via the USB-C and USB-A data ports. Note: The USB C 5Gbps Data port does not support video output.
- HD Display: Connect to the HDMI port to stream or mirror content to an external monitor in resolutions of up to 4K@30Hz. Note: The USB-C ports do not support video output.
- What You Get: Anker 332 USB-C Hub (5-in-1), welcome guide, our worry-free 18-month warranty, and friendly customer service.
Synchronous and asynchronous requests
Guzzle supports both synchronous and asynchronous requests through its client interface. A synchronous call lets the application continue after the response is available; asynchronous requests use promises so work can be initiated without immediately waiting for each response. This is useful when an application can make progress while requests are pending, but the appropriate pattern depends on how the surrounding PHP application manages promises and concurrency.
Guzzle’s transport abstraction means choosing an asynchronous pattern does not require application code to be written directly against a particular event loop. The selected handler still determines the underlying execution behavior.
Quick Recap
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
