WordPress 默認的搜索功能還真挺弱的,搜索出來的結果很不符合人意,如果你想讓它檢索出來的結果更加相關,可以限定隻搜索文章的標題,將下面的代碼添加到主題的 functions.php 文件即可:
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/** * 讓 WordPress 隻搜索文章的標題 * https://www.wpdaxue.com/search-by-title-only.html */ function __search_by_title_only( $search, &$wp_query ) { global $wpdb; if ( empty( $search ) ) return $search; // skip processing - no search term in query $q = $wp_query->query_vars; $n = ! empty( $q['exact'] ) ? '' : '%'; $search = $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 '; } 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', 500, 2 ); |
/**
* 讓 WordPress 隻搜索文章的標題
* https://www.wpdaxue.com/search-by-title-only.html
*/
function __search_by_title_only( $search, &$wp_query )
{
global $wpdb; if ( empty( $search ) )
return $search; // skip processing – no search term in query $q = $wp_query->query_vars;
$n = ! empty( $q[‘exact’] ) ? ” : ‘%’; $search =
$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 ‘;
} 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’, 500, 2 );
參考資料:http://wordpress.stackexchange.com/questions/11822/