Wrapper for Facebook class without using CURL.

facebooknocurl.php

<?php

// If these aren't defined, define them so the official API client doesn't cry.
if (!defined('CURLOPT_USERAGENT'))
	define('CURLOPT_USERAGENT', 'CURLOPT_USERAGENT');
if (!defined('CURLOPT_CONNECTTIMEOUT'))
	define('CURLOPT_CONNECTTIMEOUT', 'CURLOPT_CONNECTTIMEOUT');
if (!defined('CURLOPT_TIMEOUT'))
	define('CURLOPT_TIMEOUT', 'CURLOPT_TIMEOUT');
if (!defined('CURLOPT_RETURNTRANSFER'))
	define('CURLOPT_RETURNTRANSFER', 'CURLOPT_RETURNTRANSFER');

// We create this so that Facebook's official API client doesn't die with an error.
if (!function_exists('curl_init')) {
	function curl_init()
	{
		throw new Exception('Unimplemented.');
	}
}

// Now we are prepared for the official one.
require(dirname(__FILE__) . '/facebook.php');

class FacebookNoCurl extends Facebook
{
	/**
	 * Makes an HTTP request. Overriden to use something other than curl.
	 *
	 * @param string $url the URL to make the request to
	 * @param array $params the parameters to use for the POST body
	 * @param null $ch not supported
	 * @return string the response text
	 */
	protected function makeRequest($url, $params, $ch = null)
	{
		if ($ch !== null)
			throw new FacebookApiException(array(
				'error_code' => 2,
				'error' => array(
					'message' => 'CURL support not found within PHP.',
					'type' => 'CurlException',
				),
			));

		return $this->makeRequestWithPHP($url, $params);
	}

	protected function _exceptionError($errno, $errstr, $errfile, $errline)
	{
		if ($errno & error_reporting())
			throw new ErrorException($errstr, 0, $errno, $errfile, $errline);
	}

	protected function makeRequestWithPHP($url, $params)
	{
		// If we can't connect and fsockopen() issues an error, throw it.
		$old_handler = set_error_handler(array($this, '_exceptionError'), E_ALL);

		// Check for new method added to class recently.
		if (method_exists($this, 'useFileUploadSupport') && $this->useFileUploadSupport())
			throw new FacebookApiException(array(
				'error_code' => 2,
				'error' => array(
					'message' => '@-syntax file upload support is not supported.',
					'type' => 'CurlException'
				),
			));
		else
			$content = http_build_query($params, null, '&');

		$context = array(
			'http' => array(
				'method' => 'POST',
				'header' =>
					'Connection: close' . "\r\n" .
					'Content-Length: ' . strlen($content) . "\r\n" .
					'Content-Type: application/x-www-form-urlencoded' . "\r\n",
				'user_agent' => Facebook::$CURL_OPTS[CURLOPT_USERAGENT] . ' php/' . PHP_VERSION,
				'content' => $content,
				'protocol_version' => '1.0',
				'ignore_errors' => true,
				'timeout' => Facebook::$CURL_OPTS[CURLOPT_TIMEOUT],
			),
			'ssl' => array(
			),
		);

		try
		{
			$e = null;
			$context = stream_context_create($context);

			$result = file_get_contents($url, false, $context);
		}
		catch (ErrorException $e)
		{
			$e = new FacebookApiException(array(
				'error_code' => $e->getCode(),
				'error'      => array(
					'message' => $e->getMessage(),
					'type'    => get_class($e),
				),
			));
		}

		restore_error_handler($old_handler);

		if ($e !== null)
			throw $e;

		return $result;
	}
}

?>