Limit search to post titles only

Adding this snippet to the functions.php of your wordpress theme will limit search to post titles only.

 

 

function __search_by_title_only( $search, &$wp_query )
{
if ( empty($search) )
return $search; // skip processing - no search term in query
$q =& $wp_query->query_vars;
// wp-includes/query.php line 2128 (version 3.1)
$n = !empty($q['exact']) ? '' : '%';
$searchand = '';
foreach( (array) $q['search_terms'] as $term ) {
$term = esc_sql( like_escape( $term ) );
$search .= "{$searchand}($wpdb->posts.post_title LIKE '{$n}{$term}{$n}')";
$searchand = ' AND ';
}
$term = esc_sql( like_escape( $q['s'] ) );
if ( empty($q['sentence']) && count($q['search_terms']) > 1 && $q['search_terms'][0] != $q['s'] )
$search .= " OR ($wpdb->posts.post_title LIKE '{$n}{$term}{$n}')";
if ( !empty($search) ) {
$search = " AND ({$search}) ";
if ( !is_user_logged_in() )
$search .= " AND ($wpdb->posts.post_password = '') ";
}
return $search;
}
add_filter( 'posts_search', '__search_by_title_only', 10, 2 );

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