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README.markdown

Curl, CurlResponse

Sean Huber http://github.com/shuber

Description

A basic CURL wrapper for PHP (see http://php.net/curl for more information about the libcurl extension for PHP)

Installation

git clone git://github.com/shuber/curl.git

Usage

Initialization

Simply require and initialize the Curl class like so

require_once 'curl.php';
$curl = new Curl;

Performing a Request

The Curl object supports 4 types of requests: GET, POST, PUT, and DELETE. You must specify a url to request and optionally specify an associative array of variables to send along with it.

$response = $curl->get($url, $vars = array()); # The Curl object will append the array of $vars to the $url as a query string
$response = $curl->post($url, $vars = array());
$response = $curl->put($url, $vars = array());
$response = $curl->delete($url, $vars = array());

Examples

$response = $curl->get('google.com?q=test');

# The Curl object will append '&some_variable=some_value' to the url
$response = $curl->get('google.com?q=test', array('some_variable' => 'some_value'));

$response = $curl->post('test.com/posts', array('title' => 'Test', 'body' => 'This is a test'));

All requests return a CurlResponse object (see below)

The CurlResponse Object

A normal CURL request will return the headers and the body in one response string. This class parses the two and places them into separate properties.

For example

$response = $curl->get('google.com');
echo $response->body; # A string containing everything in the response except for the headers
print_r($response->headers); # An associative array containing the response headers

Which would display something like

<html>
<head>
<title>Google.com</title>
</head>
<body>
Some more html...
</body>
</html>

Array
(
    [Http-Version] => 1.0
    [Status-Code] => 200
    [Status] => 200 OK
    [Cache-Control] => private
    [Content-Type] => text/html; charset=ISO-8859-1
    [Date] => Wed, 07 May 2008 21:43:48 GMT
    [Server] => gws
    [Connection] => close
)

The CurlResponse class defines the magic __toString() method which will return the response body, so echo $response is the same as echo $response->body

Cookie Sessions

By default, cookies will be stored in a file called curl_cookie.txt. You can change this file's name by setting it like this

$curl->cookie_file = 'some_other_filename';

This allows you to maintain a session across requests

Basic Configuration Options

You can easily set the referer or user-agent

$curl->referer = 'http://google.com';
$curl->user_agent = 'some user agent string';

You may even set these headers manually if you wish (see below)

Setting Custom Headers

You can set custom headers to send with the request

$curl->headers['Host'] = 12.345.678.90;
$curl->headers['Some-Custom-Header'] = 'Some Custom Value';

Setting Custom CURL request options

You can set/override many different options for CURL requests (see the curl_setopt documentation for a list of them)

# any of these will work
$curl->options['AUTOREFERER'] = true;
$curl->options['autoreferer'] = true;
$curl->options['CURLOPT_AUTOREFERER'] = true;
$curl->options['curlopt_autoreferer'] = true;

Contact

Problems, comments, and suggestions all welcome: shuber@huberry.com

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