其实WordPress自带搜索功能查找很弱，想让WordPress自带只搜索文章标题搜索功能，让搜索结果更加精准，今天分享一下WordPress添加只搜索文章标题的搜索功能方法，可以将下面的代码添加到当前主题functions.php中：

// 只搜索文章标题

function wpse_11826_search_by_title( $search, $wp_query ) {

if ( ! empty( $search ) && ! empty( $wp_query->query_vars[‘search_terms’] ) ) {

global $wpdb;

$q = $wp_query->query_vars;

$n = ! empty( $q[‘exact’] ) ? ” : ‘%’;

$search = array();

foreach ( ( array ) $q[‘search_terms’] as $term )

$search[] = $wpdb->prepare( “$wpdb->posts.post_title LIKE %s”, $n . $wpdb->esc_like( $term ) . $n );

if ( ! is_user_logged_in() )

$search[] = “$wpdb->posts.post_password = ””;

$search = ‘ AND ‘ . implode( ‘ AND ‘, $search );

}

return $search;

}

add_filter( ‘posts_search’, ‘wpse_11826_search_by_title’, 10, 2 );