WordPress 2.9版引入文章缩略图的功能,这个特色图像功能,不仅可以在前台显示,后台文章列表中也可以显示缩略图。
将如下代码添加到当前主题functions.php中:
- if ( !function_exists('fb_AddThumbColumn') && function_exists('add_theme_support') ) {
- // for post and page
- add_theme_support('post-thumbnails', array( 'post', 'page' ) );
- function fb_AddThumbColumn($cols) {
- $cols['thumbnail'] = __('Thumbnail');
- return $cols;
- }
- function fb_AddThumbValue($column_name, $post_id) {
- $width = (int) 35;
- $height = (int) 35;
- if ( 'thumbnail' == $column_name ) {
- // thumbnail of WP 2.9
- $thumbnail_id = get_post_meta( $post_id, '_thumbnail_id', true );
- // image from gallery
- $attachments = get_children( array('post_parent' => $post_id, 'post_type' => 'attachment', 'post_mime_type' => 'image') );
- if ($thumbnail_id)
- $thumb = wp_get_attachment_image( $thumbnail_id, array($width, $height), true );
- elseif ($attachments) {
- foreach ( $attachments as $attachment_id => $attachment ) {
- $thumb = wp_get_attachment_image( $attachment_id, array($width, $height), true );
- }
- }
- if ( isset($thumb) && $thumb ) {
- echo $thumb;
- } else {
- echo __('None');
- }
- }
- }
- // for posts
- add_filter( 'manage_posts_columns', 'fb_AddThumbColumn' );
- add_action( 'manage_posts_custom_column', 'fb_AddThumbValue', 10, 2 );
- // for pages
- add_filter( 'manage_pages_columns', 'fb_AddThumbColumn' );
- add_action( 'manage_pages_custom_column', 'fb_AddThumbValue', 10, 2 );
- }
源代码出自:http://wpengineer.com/1960/display-post-thumbnail-post-page-overview/
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宁夏银川市 1F
大佬 这个支持最新版的wordpress5.6么?
有没有什么办法在文章列表显示文章缩略图呢?
如果没有缩略图就显示文章的第一个图片。