Tuesday, May 26, 2009

PHP Proxy example for Yahoo! Web services. (Permission denied XmlHttpRequest- Cross site Ajax Request)

// PHP Proxy example for Yahoo! Web services.
// Responds to both HTTP GET and POST requests
// Author: Jason Levitt
// December 7th, 2005

// Allowed hostname (api.local and api.travel are also possible here)
define ('HOSTNAME', 'http://search.yahooapis.com/');

// Get the REST call path from the AJAX application
// Is it a POST or a GET?
$path = ($_POST['yws_path']) ? $_POST['yws_path'] : $_GET['yws_path'];
$url = HOSTNAME.$path;

// Open the Curl session
$session = curl_init($url);

// If it's a POST, put the POST data in the body
if ($_POST['yws_path']) {
$postvars = '';
while ($element = current($_POST)) {
$postvars .= key($_POST).'='.$element.'&';
curl_setopt ($session, CURLOPT_POST, true);
curl_setopt ($session, CURLOPT_POSTFIELDS, $postvars);

// Don't return HTTP headers. Do return the contents of the call
curl_setopt($session, CURLOPT_HEADER, false);
curl_setopt($session, CURLOPT_RETURNTRANSFER, true);

// Make the call
$xml = curl_exec($session);

// The web service returns XML. Set the Content-Type appropriately
header("Content-Type: text/xml");

echo $xml;


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