让WordPress的搜索结果包括自定义文章类型的内容

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//让搜索支持自定义文章类型function searchAll( $query ) {  if ( $query->is_search ) { $query->set( 'post_type', array( 'post','books', 'product','works' )); }   return $query;}add_filter( 'the_search_query', 'searchAll' );

//让搜索支持自定义文章类型function searchAll( $query ) { if ( $query->is_search ) { $query->set( 'post_type', array( 'post','books', 'product','works' )); } return $query;}add_filter( 'the_search_query', 'searchAll' );

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//让搜索支持所有自定义文章类型function include_post_types_in_search($query) {if(is_search()) {$post_types = get_post_types(array('public' => true, 'exclude_from_search' => false), 'objects');$searchable_types = array();if($post_types) {foreach( $post_types as $type) {$searchable_types[] = $type->name;}}$query->set('post_type', $searchable_types);}return $query;}add_action('pre_get_posts', 'include_post_types_in_search');

//让搜索支持所有自定义文章类型function include_post_types_in_search($query) {if(is_search()) {$post_types = get_post_types(array('public' => true, 'exclude_from_search' => false), 'objects');$searchable_types = array();if($post_types) {foreach( $post_types as $type) {$searchable_types[] = $type->name;}}$query->set('post_type', $searchable_types);}return $query;}add_action('pre_get_posts', 'include_post_types_in_search');