curl.php

class Curl
{
	/**
	 * A get request to another site.
	 *
	 * Ex: Curl::get('http://google.com/') will return the standard curl response from google
	 *
	 * @param string The url of the site
	 * @param string The response language (currently json or xml, they will be automatically parsed)
	 * @param array  Any custom curl options that need to be added in the form of array(OPTION => 'value');
	 *
	 * @return varies The response from the server
	 */
	static function get($url, $language = '', $customCurl = null)
	{
		$param = array(
			CURLOPT_URL => $url,
		);

		if(count($customCurl) > 0)
		{
			foreach($customCurl as $key => $value)
			{
				$param[$key] = $value;
			}
		}
		$response = self::base($param);
	 	if ($language != '')
	 	{
			return self::parse($response, $language);
		}
		else
		{
			return $response
		}
	}

	/**
	 * A post request to another site.
	 *
	 * Ex: Curl::post('http://google.com/', array('item1' => 'something', 'json')) will send post data to google and return a decoded json string
	 *
	 * @param string The url of the site.
	 * @param array  POST data to send to the site.
	 * @param string The response language (currently json or xml, they will be automatically parsed).
	 * @param array  Any custom curl options that need to be added in the form of array(OPTION => 'value');
	 *
	 * @return varies The response from the server
	 */
	static function post($url, $postdata, $language = '', $customCurl = array())
	{
		$param = array(
			CURLOPT_URL => $url,
			CURLOPT_POSTFIELDS => $postdata,
		);

		if(count($customCurl) > 0)
		{
			foreach($customCurl as $key => $value)
			{
				$param[$key] = $value;
			}
		}
		$response = self::base($param);
	 	if ($language != '')
	 	{
			return self::parse($response, $language);
		}
		else
		{
			return $response
		}
	}

	/**
	 * A delete request to another site.
	 *
	 * Ex: Curl::delete('http://google.com/') will return the delete curl response from google
	 *
	 * @param string The url of the site
	 *
	 * @return varies The response from the server
	 */
	static function delete($url)
	{
		$param = array(
			CURLOPT_URL => $url,
			CURLOPT_CUSTOMREQUEST => 'DELETE',
		);
		$response = self::base($param);
		return $response;
	}

	/**
	 * The base request to actually execute the curl request
	 *
	 * @param array   The parameters for the curlopt() options.
	 *
	 * @return varies The response from the server
	 */
	static private function base($param)
	{
		$ch = curl_init();


		foreach($param as $constant => $value)
		{
 			curl_setopt($ch, $constant, $value); 
		}
		curl_setopt ($ch, CURLOPT_RETURNTRANSFER, 1);
		$response = curl_exec($ch);
		// var_dump(curl_error($ch));
		curl_close($ch);

		return $response;
	}
	/**
	 * Parses a string and returns decoded information
	 *
	 * @param string The string response from the server.
	 * @param string The language of the response string.
	 *
	 * @return varies The response from the server.
	 */
	static private function parse($response, $language)
	{
		switch($language)
		{
			case 'json':
				return json_decode($response);
			break;
			case 'xml':
				return simplexml_load_string($response);
			break;
		}
	}

}