php 投稿一覧に「サムネイル」「ID」「スラッグ」」文字数」の4项目を追加

Posted 2021-05-05

function add_posts_columns($columns) {
	$columns['thumbnail'] = 'サムネイル';
	$columns['postid'] = 'ID';
	$columns['slug'] = 'スラッグ';
	$columns['count'] = '文字数';

	echo '<style type="text/css">
	.fixed .column-thumbnail {width: 80px;}
	.fixed .column-postid {width: 4%;}
	.fixed .column-slug, .fixed .column-count {width: 9%;}
	</style>';

	return $columns;
}
function add_posts_columns_row($column_name, $post_id) {
	if ( 'thumbnail' == $column_name ) {
		$thumb = get_the_post_thumbnail($post_id, array(60,60), 'thumbnail');
		echo ( $thumb ) ? $thumb : '－';
	} elseif ( 'postid' == $column_name ) {
		echo $post_id;
		
	} elseif ( 'slug' == $column_name ) {
		$slug = get_post($post_id) -> post_name;
		echo $slug;
	} elseif ( 'count' == $column_name ) {
		$count = mb_strlen(strip_tags(get_post_field('post_content', $post_id)));
		echo $count;
	}
}
add_filter( 'manage_posts_columns', 'add_posts_columns' );
add_action( 'manage_posts_custom_column', 'add_posts_columns_row', 10, 2 );