Question

add_post_type_support( string $post_type,  string|array $feature )

Register support of certain features for a post type.

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description

All core features are directly associated with a functional area of the edit screen, such as the editor or a meta box. Features include: ‘title’, ‘editor’, ‘comments’, ‘revisions’, ‘trackbacks’, ‘author’, ‘excerpt’, ‘page-attributes’, ‘thumbnail’, ‘custom-fields’, and ‘post-formats’.

Additionally, the ‘revisions’ feature dictates whether the post type will store revisions, and the ‘comments’ feature dictates whether the comments count will show on the edit screen.

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参数

$post_type

(string) (Required) The post type for which to add the feature.

$feature

(string|array) (Required) The feature being added, accepts an array of feature strings or a single string.

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源代码

File: wp-includes/post.php

function add_post_type_support( $post_type, $feature ) {
	global $_wp_post_type_features;

	$features = (array) $feature;
	foreach ($features as $feature) {
		if ( func_num_args() == 2 )
			$_wp_post_type_features[$post_type][$feature] = true;
		else
			$_wp_post_type_features[$post_type][$feature] = array_slice( func_get_args(), 2 );
	}
}

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更新日志

Version	description
3.0.0	Introduced.

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相关函数

Used By

• wp-includes/class-wp-post-type.php: WP_Post_Type::add_supports()
• wp-includes/post.php: create_initial_post_types()

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User Contributed Notes

1. Skip to note content You must log in to vote on the helpfulness of this noteVote results for this note: 0You must log in to vote on the helpfulness of this note Contributed by Codex

   This example adds support for excerpts in pages (assuming it is *not* showing under “Screen Options”):

   
   <?php
   add_action('init', 'wpdocs_custom_init');
   
   /**
    * Add excerpt support to pages
    */
   function wpdocs_custom_init() {
   	add_post_type_support( 'page', 'excerpt' );
   }
   ?>
   

Unfortunately,

add_post_type_support('page', 'thumbnail');

won’t add featured images to pages. For that you need to [add theme support for post-thumbnails

add_theme_support( 'post-thumbnails', array( 'post', 'page' ) );

https://developer.wordpress.org/reference/functions/add_theme_support/#post-thumbnails