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Guzzle is a PHP HTTP client and framework for building RESTful web service clients

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README.md

Guzzle, PHP HTTP client and webservice framework

Guzzle is a game changer in the world of PHP HTTP clients. Guzzle allows you to truly reap the benefits of the HTTP/1.1 spec. No other library makes it easier to manage persistent connections or send requests in parallel.

In addition to taking the pain out of HTTP, Guzzle provides a lightweight framework for creating web service clients. Most web service clients follow a specific pattern: create a client class, create methods for each action, create and execute a cURL handle, parse the response, implement error handling, and return the result. Guzzle takes the redundancy out of this process and gives you the tools you need to quickly build a web service client.

Start truly consuming HTTP with Guzzle.

Build Status

Features

  • Supports GET, HEAD, POST, DELETE, PUT, PATCH, OPTIONS, and any custom verbs
  • Allows full access to request and response headers
  • Persistent connections are implicitly managed by Guzzle, resulting in huge performance benefits
  • Send requests in parallel
  • Cookie sessions can be maintained between requests using the CookiePlugin
  • Allows custom entity bodies, including sending data from a PHP stream
  • Responses can be cached and served from cache using the caching reverse proxy plugin
  • Failed requests can be retried using truncated exponential backoff
  • Entity bodies can be validated automatically using Content-MD5 headers
  • All data sent over the wire can be logged using the LogPlugin
  • Automatically requests compressed data and automatically decompresses data
  • Subject/Observer signal slot system for unobtrusively modifying request behavior
  • Supports all of the features of libcurl including authentication, redirects, SSL, proxies, etc
  • Web service client framework for building future-proof interfaces to web services
  • Full support for URI templates

HTTP basics

<?php

use Guzzle\Http\Client;

$client = new Client('http://www.example.com/api/v1/key/{{key}}', array(
    'key' => '***'
));

// Issue a path using a relative URL to the client's base URL
// Sends to http://www.example.com/api/v1/key/***/users
$request = $client->get('users');
$response = $request->send();

// Relative URL that overwrites the path of the base URL
$request = $client->get('/test/123.php?a=b');

// Issue a head request on the base URL
$response = $client->head()->send();
// Delete user 123
$response = $client->delete('users/123')->send();

// Send a PUT request with custom headers
$response = $client->put('upload/text', array(
    'X-Header' => 'My Header'
), 'body of the request')->send();

// Send a PUT request using the contents of a PHP stream as the body
// Send using an absolute URL (overrides the base URL)
$response = $client->put('http://www.example.com/upload', array(
    'X-Header' => 'My Header'
), fopen('http://www.test.com/', 'r'));

// Create a POST request with a file upload (notice the @ symbol):
$request = $client->post('http://localhost:8983/solr/update', null, array (
    'custom_field' => 'my value',
    'file' => '@/path/to/documents.xml'
));

// Create a POST request and add the POST files manually
$request = $client->post('http://localhost:8983/solr/update')
    ->addPostFiles(array(
        'file' => '/path/to/documents.xml'
    ));

// Responses are objects
echo $response->getStatusCode() . ' ' . $response->getReasonPhrase() . "\n";

// Requests and responses can be cast to a string to show the raw HTTP message
echo $request . "\n\n" . $response;

// Create a request based on an HTTP message
$request = RequestFactory::fromMessage(
    "PUT / HTTP/1.1\r\n" .
    "Host: test.com:8081\r\n" .
    "Content-Type: text/plain"
    "Transfer-Encoding: chunked\r\n" .
    "\r\n" .
    "this is the body"
);

Send requests in parallel

<?php

try {
    $client = new Guzzle\Http\Client('http://www.myapi.com/api/v1');
    $responses = $client->send(array(
        $client->get('users'),
        $client->head('messages/123'),
        $client->delete('orders/123')
    ));
} catch (Guzzle\Common\Exception\ExceptionCollection $e) {
    echo "The following requests encountered an exception: \n";
    foreach ($e as $exception) {
        echo $exception->getRequest() . "\n" . $exception->getMessage() . "\n";
    }
}

URI templates

Guzzle supports the entire URI templates RFC.

<?php

$client = new Guzzle\Http\Client('http://www.myapi.com/api/v1', array(
    'path' => '/path/to',
    'a'    => 'hi',
    'data' => array(
        'foo'  => 'bar',
        'mesa' => 'jarjar'
    )
));

$request = $client->get('http://www.test.com{+path}{?a,data*}');

The generated request URL would become: http://www.test.com/path/to?a=hi&foo=bar&mesa=jarajar

You can specify URI templates and an array of additional template variables to use when creating requests:

<?php

$client = new Guzzle\Http\Client('http://test.com', array(
    'a' => 'hi'
));

$request = $client->get(array('/{?a,b}', array(
    'b' => 'there'
));

The resulting URL would become http://test.com?a=hi&b=there

Testing and contributing to Guzzle

You will need to clone the Guzzle repository in order to be able to contribute to Guzzle:

git clone git@github.com:guzzle/guzzle.git
cd guzzle

Next you will need to make sure PHPUnit is configured, Composer is installed, and you have installed Guzzle's testing dependencies. This can be acheived very simply by using the test-init Phing task. After running this task, simply run PHPUnit.

phing test-init
phpunit

If you do not have Phing installed, you will need to perform the installation steps manually:

# Make sure Composer is installed
curl -s http://getcomposer.org/installer | php

# Install Guzzle's testing dependencies
php composer.phar install --dev

# Now kick off PHPUnit to run the tests
cp phpunit.xml.dist phpunit.xml
phpunit
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