快速提示：在WordPress管理屏幕中添加自定义列

function ST4_columns_head($defaults) {
	$defaults['first_column']  = 'First Column';

	/* ADD ANOTHER COLUMN (OPTIONAL) */
	// $defaults['second_column'] = 'Second Column';

	/* REMOVE DEFAULT CATEGORY COLUMN (OPTIONAL) */
	// unset($defaults['categories']);

	/* TO GET DEFAULTS COLUMN NAMES: */
	// print_r($defaults);

	return $defaults;
}

// ONLY FOR movie CUSTOM POST TYPE
function ST4_columns_head_movies($defaults) {
	$defaults['my_movie_column'] = 'MY MOVIE COLUMN';
	return $defaults;
}

// GENERAL PURPOSE
function ST4_columns_content($column_name, $post_ID) {
	if ($column_name == 'first_column') {
		// DO STUFF FOR first_column COLUMN
		echo 'The post ID is: ' . $post_ID;
	}

	/* IF YOU NEED ANOTHER COLUMN - UNCOMMENT ALSO
	$defaults['second_column'] = 'Second Column';
	in ST4_columns_head()
	*/

	/*
	if ($column_name == 'second_column') {
		// DO STUFF FOR second_column COLUMN
	}
	*/
}

// TAXONOMIES: CATEGORIES (POSTS AND LINKS), TAGS AND CUSTOM TAXONOMIES
function ST4_columns_content_taxonomy($c, $column_name, $term_id) {
	if ($column_name == 'first_column') {
		echo 'The term ID is: ' . $term_id;
	}
}

// USERS
function ST4_columns_content_users($c, $column_name, $user_id) {
	if ($column_name == 'first_column') {
		$output .=  'The user ID is: ' . $user_id;
	}
	if ($column_name == 'second_column') {
		$output .=  'This is the second column content';
	}
	return $output;
}

// CUSTOM POSTS
function ST4_columns_content_movies($column_name, $movie_ID) {
	if ($column_name == 'my_movie_column') {
		echo 'The movie ID is: ' . $movie_ID;
	}
}

add_filter('manage_posts_columns', 'ST4_columns_head');
add_filter('manage_posts_custom_column', 'ST4_columns_content', 10, 2);

add_filter('manage_post_posts_columns', 'ST4_columns_head', 10);
add_action('manage_post_posts_custom_column', 'ST4_columns_content', 10, 2);

add_filter('manage_page_posts_columns', 'ST4_columns_head', 10);
add_action('manage_page_posts_custom_column', 'ST4_columns_content', 10, 2);

add_filter('manage_movie_posts_columns', 'ST4_columns_head_movies', 10);
add_action('manage_movie_posts_custom_column', 'ST4_columns_content_movies', 10, 2);

add_filter('manage_edit-category_columns', 'ST4_columns_head');
add_filter('manage_category_custom_column', 'ST4_columns_content_taxonomy', 10, 2);

add_filter('manage_edit-genre_columns', 'ST4_columns_head');
add_filter('manage_genre_custom_column', 'ST4_columns_content_taxonomy', 10, 2);

add_filter('manage_edit-post_tag_columns', 'ST4_columns_head');
add_filter('manage_post_tag_custom_column', 'ST4_columns_content_taxonomy', 10, 2);

add_filter('manage_edit-link_category_columns', 'ST4_columns_head');
add_filter('manage_link_category_custom_column', 'ST4_columns_content_taxonomy', 10, 2);

add_filter('manage_media_columns', 'ST4_columns_head');
add_filter('manage_media_custom_column', 'ST4_columns_content', 10, 2);

add_filter('manage_users_columns', 'ST4_columns_head');
add_filter('manage_users_custom_column', 'ST4_columns_content_users', 10, 2);