always use object type for details keywords

When name and address is empty, the keywords field in the response
of the details API would be an array because that is what PHP's
json_encode defaults to with empty array(). This default can only
be changed globally per json_encode call and that might cause
unintended colleteral damage. Work around the issue by making
name and address an empty array instead of keywords.

Fixes #2329.

diff --git a/lib-php/template/details-json.php b/lib-php/template/details-json.php
index 0449dbb94f20916c26b1f68562e0ea185d7d3807..a813b9a6524efc4e912c71ecc07a7f2884c925f5 100644 (file)
--- a/lib-php/template/details-json.php
+++ b/lib-php/template/details-json.php
@@ -81,10 +81,14 @@ if ($bIncludeKeywords) {
 
     if ($aPlaceSearchNameKeywords) {
         $aPlaceDetails['keywords']['name'] = array_map($funcMapKeyword, $aPlaceSearchNameKeywords);
+    } else {
+        $aPlaceDetails['keywords']['name'] = array();
     }
 
     if ($aPlaceSearchAddressKeywords) {
         $aPlaceDetails['keywords']['address'] = array_map($funcMapKeyword, $aPlaceSearchAddressKeywords);
+    } else {
+        $aPlaceDetails['keywords']['address'] = array();
     }
 }