Tests for whether is an array or an object before running http_build_query() on . Props santosj. fixes #7460 see #4779

git-svn-id: http://svn.automattic.com/wordpress/trunk@8536 1a063a9b-81f0-0310-95a4-ce76da25c4cd

wp-includes/http.php

@@ -196,7 +196,7 @@ class WP_Http {
 			$headers['user-agent'] = $r['user-agent'];
 
 		if ( is_null($body) ) {
-			if ( ! is_string($body) )
+			if ( is_array($body) || is_object($body) )
 				$body = http_build_query($body);
 
 			$transports = WP_Http::_getTransport();