<?php
/*
Plugin Name: List HTTP Transports
Plugin URI: 
Description: List available HTTP transports
Author: Ryan Boren
Version: 1.0
Author URI: http://boren.nu/
*/

function list_transports() {
	$transport = '';
	if ( true === WP_Http_ExtHttp::test() )
		$transport .= 'ExtHttp';
	if ( true === WP_Http_Curl::test() )
		$transport .= ' Curl';
	if ( true === WP_Http_Streams::test() )
		$transport .= ' Streams';
	if ( true === WP_Http_Fopen::test() )
		$transport .= ' Fopen';
	if ( true === WP_Http_Fsockopen::test() )
		$transport .= ' Fsockopen';

	echo "Available transports: $transport";
}

add_action('admin_footer', 'list_transports');

?>