FIXED: Support for WP 3.5

The parameter name used in the form for searching by category is incorrect. Fortunately, it is very easy to modify the code to fix this.

1. Edit search-by-category.php (It’s in the “wp-content/plugins/search-by-category” directory)

2. Next, change the phrase ‘cat’ to ‘category’ on the following lines:

237:  $cat_id = (int)$_GET['category'];
252:  'name' => 'category',
268:  $cat_id = $_GET['category'] ? (int) $_GET['category'] : 0;
303:  if ( isset($_REQUEST['s']) && isset($_REQUEST['category']) ){
306: $desired_cat = $_REQUEST['category'];
311:  $wp_query->query_vars['category'] = "-{$excluded}";

This restores the search functionality. I haven’t tested it for exclusions because I don’t need it. If someone else wants to test for exclusions, post the results here and I will fix if neccessary.

http://wordpress.org/plugins/search-by-category/