关闭或隐藏header里的wp-json及api功能

如果在不使用一个插件的情况下 隐藏/关闭/禁用 wp-json api 功能

[link rel='https://api.w.org/' href='http://example.com/wp-json/' /]
[link rel="alternate" type="application/json+oembed" href="http://example.com/wp-json/oembed/1.0/embed?url=..." /]
[link rel="alternate" type="text/xml+oembed" href="http://example.com/wp-json/oembed/1.0/embed?url=..." /]

remove_action( 'wp_head',      'rest_output_link_wp_head'              );

remove_action( 'wp_head',      'wp_oembed_add_discovery_links'         );

remove_action( 'template_redirect', 'rest_output_link_header', 11, 0 );

这个自定义函数应该有助于删除头和尾中的所有链接

function remove_json_api () {
    // Remove the REST API lines from the HTML Header
    remove_action( 'wp_head', 'rest_output_link_wp_head', 10 );
    remove_action( 'wp_head', 'wp_oembed_add_discovery_links', 10 );
    // Remove the REST API endpoint.
    remove_action( 'rest_api_init', 'wp_oembed_register_route' );
    // Turn off oEmbed auto discovery.
    add_filter( 'embed_oembed_discover', '__return_false' );
    // Don't filter oEmbed results.
    remove_filter( 'oembed_dataparse', 'wp_filter_oembed_result', 10 );
    // Remove oEmbed discovery links.
    remove_action( 'wp_head', 'wp_oembed_add_discovery_links' );
    // Remove oEmbed-specific JavaScript from the front-end and back-end.
    remove_action( 'wp_head', 'wp_oembed_add_host_js' );
   // Remove all embeds rewrite rules.
   add_filter( 'rewrite_rules_array', 'disable_embeds_rewrites' );
}
add_action( 'after_setup_theme', 'remove_json_api' );

禁用json api

function disable_json_api () {
  // Filters for WP-API version 1.x
  add_filter('json_enabled', '__return_false');
  add_filter('json_jsonp_enabled', '__return_false');
  // Filters for WP-API version 2.x
  add_filter('rest_enabled', '__return_false');
  add_filter('rest_jsonp_enabled', '__return_false');
}
add_action( 'after_setup_theme', 'disable_json_api' );