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How to Display Specific Category Only In Search Result
by HeaDFaK3

While customizing a WordPress site, sometimes We also need to configure, how our WordPress site display the search result. On our previous code snippet, I have showed how to exclude specific category from search result. This tutorial will be the reserve, display the posts from specific category only in search result. Maybe this is not a good idea, because the search result will be very limited, but lets just make this as a way to know more how actually WordPress works.

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function searchcategory($query) {
	if ($query->is_search) {
		$query->set('cat','2,5');
	}

	return $query;
}

add_filter('pre_get_posts','searchcategory');

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