curl

by shuber

shuber /curl

A basic CURL wrapper for PHP

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curl

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

Installation

Click the

download
link above or
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 5 types of requests: HEAD, GET, POST, PUT, and DELETE. You must specify a url to request and optionally specify an associative array or string of variables to send along with it.

$response = $curl->head($url, $vars = array());
$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());

To use a custom request methods, you can call the

request
method:
$response = $curl->request('YOUR_CUSTOM_REQUEST_TYPE', $url, $vars = array());

All of the built in request methods like

put
and
get
simply wrap the
request
method. For example, the
post
method is implemented like:
function post($url, $vars = array()) {
    return $this->request('POST', $url, $vars);
}

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) or false if an error occurred. You can access the error string with the

$curl->error()
method.

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

Google.com


Some more 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

By default, the

Curl
object will follow redirects. You can disable this by setting:
$curl->follow_redirects = false;

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;

Testing

Uses ztest, simply download it to

path/to/curl/test/ztest
(or anywhere else in your php include_path)

Then run

test/runner.php

Contact

Problems, comments, and suggestions all welcome: [email protected]

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