如何修复XAMPP本地主机index.php错误
create_initial_post_types ( No parameters )
WordPress中的create_initial_post_types函数用于创建WordPress中的默认文章类型，如文章和页面。它在安装过程中被调用，如果默认的文章类型被删除，也可以手动调用来重新创建。
当’init’动作被触发时，创建初始文章类型。
参见{@see ‘init’}。
function create_initial_post_types() {
WP_Post_Type::reset_default_labels();
register_post_type(
'post',
array(
'labels' => array(
'name_admin_bar' => _x( 'Post', 'add new from admin bar' ),
),
'public' => true,
'_builtin' => true, /* internal use only. don't use this when registering your own post type. */
'_edit_link' => 'post.php?post=%d', /* internal use only. don't use this when registering your own post type. */
'capability_type' => 'post',
'map_meta_cap' => true,
'menu_position' => 5,
'menu_icon' => 'dashicons-admin-post',
'hierarchical' => false,
'rewrite' => false,
'query_var' => false,
'delete_with_user' => true,
'supports' => array( 'title', 'editor', 'author', 'thumbnail', 'excerpt', 'trackbacks', 'custom-fields', 'comments', 'revisions', 'post-formats' ),
'show_in_rest' => true,
'rest_base' => 'posts',
'rest_controller_class' => 'WP_REST_Posts_Controller',
)
);
register_post_type(
'page',
array(
'labels' => array(
'name_admin_bar' => _x( 'Page', 'add new from admin bar' ),
),
'public' => true,
'publicly_queryable' => false,
'_builtin' => true, /* internal use only. don't use this when registering your own post type. */
'_edit_link' => 'post.php?post=%d', /* internal use only. don't use this when registering your own post type. */
'capability_type' => 'page',
'map_meta_cap' => true,
'menu_position' => 20,
'menu_icon' => 'dashicons-admin-page',
'hierarchical' => true,
'rewrite' => false,
'query_var' => false,
'delete_with_user' => true,
'supports' => array( 'title', 'editor', 'author', 'thumbnail', 'page-attributes', 'custom-fields', 'comments', 'revisions' ),
'show_in_rest' => true,
'rest_base' => 'pages',
'rest_controller_class' => 'WP_REST_Posts_Controller',
)
);
register_post_type(
'attachment',
array(
'labels' => array(
'name' => _x( 'Media', 'post type general name' ),
'name_admin_bar' => _x( 'Media', 'add new from admin bar' ),
'add_new' => _x( 'Add New', 'file' ),
'edit_item' => __( 'Edit Media' ),
'view_item' => __( 'View Attachment Page' ),
'attributes' => __( 'Attachment Attributes' ),
),
'public' => true,
'show_ui' => true,
'_builtin' => true, /* internal use only. don't use this when registering your own post type. */
'_edit_link' => 'post.php?post=%d', /* internal use only. don't use this when registering your own post type. */
'capability_type' => 'post',
'capabilities' => array(
'create_posts' => 'upload_files',
),
'map_meta_cap' => true,
'menu_icon' => 'dashicons-admin-media',
'hierarchical' => false,
'rewrite' => false,
'query_var' => false,
'show_in_nav_menus' => false,
'delete_with_user' => true,
'supports' => array( 'title', 'author', 'comments' ),
'show_in_rest' => true,
'rest_base' => 'media',
'rest_controller_class' => 'WP_REST_Attachments_Controller',
)
);
add_post_type_support( 'attachment:audio', 'thumbnail' );
add_post_type_support( 'attachment:video', 'thumbnail' );
register_post_type(
'revision',
array(
'labels' => array(
'name' => __( 'Revisions' ),
'singular_name' => __( 'Revision' ),
),
'public' => false,
'_builtin' => true, /* internal use only. don't use this when registering your own post type. */
'_edit_link' => 'revision.php?revision=%d', /* internal use only. don't use this when registering your own post type. */
'capability_type' => 'post',
'map_meta_cap' => true,
'hierarchical' => false,
'rewrite' => false,
'query_var' => false,
'can_export' => false,
'delete_with_user' => true,
'supports' => array( 'author' ),
)
);
register_post_type(
'nav_menu_item',
array(
'labels' => array(
'name' => __( 'Navigation Menu Items' ),
'singular_name' => __( 'Navigation Menu Item' ),
),
'public' => false,
'_builtin' => true, /* internal use only. don't use this when registering your own post type. */
'hierarchical' => false,
'rewrite' => false,
'delete_with_user' => false,
'query_var' => false,
'map_meta_cap' => true,
'capability_type' => array( 'edit_theme_options', 'edit_theme_options' ),
'capabilities' => array(
// Meta Capabilities.
'edit_post' => 'edit_post',
'read_post' => 'read_post',
'delete_post' => 'delete_post',
// Primitive Capabilities.
'edit_posts' => 'edit_theme_options',
'edit_others_posts' => 'edit_theme_options',
'delete_posts' => 'edit_theme_options',
'publish_posts' => 'edit_theme_options',
'read_private_posts' => 'edit_theme_options',
'read' => 'read',
'delete_private_posts' => 'edit_theme_options',
'delete_published_posts' => 'edit_theme_options',
'delete_others_posts' => 'edit_theme_options',
'edit_private_posts' => 'edit_theme_options',
'edit_published_posts' => 'edit_theme_options',
),
'show_in_rest' => true,
'rest_base' => 'menu-items',
'rest_controller_class' => 'WP_REST_Menu_Items_Controller',
)
);
register_post_type(
'custom_css',
array(
'labels' => array(
'name' => __( 'Custom CSS' ),
'singular_name' => __( 'Custom CSS' ),
),
'public' => false,
'hierarchical' => false,
'rewrite' => false,
'query_var' => false,
'delete_with_user' => false,
'can_export' => true,
'_builtin' => true, /* internal use only. don't use this when registering your own post type. */
'supports' => array( 'title', 'revisions' ),
'capabilities' => array(
'delete_posts' => 'edit_theme_options',
'delete_post' => 'edit_theme_options',
'delete_published_posts' => 'edit_theme_options',
'delete_private_posts' => 'edit_theme_options',
'delete_others_posts' => 'edit_theme_options',
'edit_post' => 'edit_css',
'edit_posts' => 'edit_css',
'edit_others_posts' => 'edit_css',
'edit_published_posts' => 'edit_css',
'read_post' => 'read',
'read_private_posts' => 'read',
'publish_posts' => 'edit_theme_options',
),
)
);
register_post_type(
'customize_changeset',
array(
'labels' => array(
'name' => _x( 'Changesets', 'post type general name' ),
'singular_name' => _x( 'Changeset', 'post type singular name' ),
'add_new' => _x( 'Add New', 'Customize Changeset' ),
'add_new_item' => __( 'Add New Changeset' ),
'new_item' => __( 'New Changeset' ),
'edit_item' => __( 'Edit Changeset' ),
'view_item' => __( 'View Changeset' ),
'all_items' => __( 'All Changesets' ),
'search_items' => __( 'Search Changesets' ),
'not_found' => __( 'No changesets found.' ),
'not_found_in_trash' => __( 'No changesets found in Trash.' ),
),
'public' => false,
'_builtin' => true, /* internal use only. don't use this when registering your own post type. */
'map_meta_cap' => true,
'hierarchical' => false,
'rewrite' => false,
'query_var' => false,
'can_export' => false,
'delete_with_user' => false,
'supports' => array( 'title', 'author' ),
'capability_type' => 'customize_changeset',
'capabilities' => array(
'create_posts' => 'customize',
'delete_others_posts' => 'customize',
'delete_post' => 'customize',
'delete_posts' => 'customize',
'delete_private_posts' => 'customize',
'delete_published_posts' => 'customize',
'edit_others_posts' => 'customize',
'edit_post' => 'customize',
'edit_posts' => 'customize',
'edit_private_posts' => 'customize',
'edit_published_posts' => 'do_not_allow',
'publish_posts' => 'customize',
'read' => 'read',
'read_post' => 'customize',
'read_private_posts' => 'customize',
),
)
);
register_post_type(
'oembed_cache',
array(
'labels' => array(
'name' => __( 'oEmbed Responses' ),
'singular_name' => __( 'oEmbed Response' ),
),
'public' => false,
'hierarchical' => false,
'rewrite' => false,
'query_var' => false,
'delete_with_user' => false,
'can_export' => false,
'_builtin' => true, /* internal use only. don't use this when registering your own post type. */
'supports' => array(),
)
);
register_post_type(
'user_request',
array(
'labels' => array(
'name' => __( 'User Requests' ),
'singular_name' => __( 'User Request' ),
),
'public' => false,
'_builtin' => true, /* internal use only. don't use this when registering your own post type. */
'hierarchical' => false,
'rewrite' => false,
'query_var' => false,
'can_export' => false,
'delete_with_user' => false,
'supports' => array(),
)
);
register_post_type(
'wp_block',
array(
'labels' => array(
'name' => _x( 'Reusable blocks', 'post type general name' ),
'singular_name' => _x( 'Reusable block', 'post type singular name' ),
'add_new' => _x( 'Add New', 'Reusable block' ),
'add_new_item' => __( 'Add new Reusable block' ),
'new_item' => __( 'New Reusable block' ),
'edit_item' => __( 'Edit Reusable block' ),
'view_item' => __( 'View Reusable block' ),
'all_items' => __( 'All Reusable blocks' ),
'search_items' => __( 'Search Reusable blocks' ),
'not_found' => __( 'No reusable blocks found.' ),
'not_found_in_trash' => __( 'No reusable blocks found in Trash.' ),
'filter_items_list' => __( 'Filter reusable blocks list' ),
'items_list_navigation' => __( 'Reusable blocks list navigation' ),
'items_list' => __( 'Reusable blocks list' ),
'item_published' => __( 'Reusable block published.' ),
'item_published_privately' => __( 'Reusable block published privately.' ),
'item_reverted_to_draft' => __( 'Reusable block reverted to draft.' ),
'item_scheduled' => __( 'Reusable block scheduled.' ),
'item_updated' => __( 'Reusable block updated.' ),
),
'public' => false,
'_builtin' => true, /* internal use only. don't use this when registering your own post type. */
'show_ui' => true,
'show_in_menu' => false,
'rewrite' => false,
'show_in_rest' => true,
'rest_base' => 'blocks',
'rest_controller_class' => 'WP_REST_Blocks_Controller',
'capability_type' => 'block',
'capabilities' => array(
// You need to be able to edit posts, in order to read blocks in their raw form.
'read' => 'edit_posts',
// You need to be able to publish posts, in order to create blocks.
'create_posts' => 'publish_posts',
'edit_posts' => 'edit_posts',
'edit_published_posts' => 'edit_published_posts',
'delete_published_posts' => 'delete_published_posts',
'edit_others_posts' => 'edit_others_posts',
'delete_others_posts' => 'delete_others_posts',
),
'map_meta_cap' => true,
'supports' => array(
'title',
'editor',
'revisions',
),
)
);
register_post_type(
'wp_template',
array(
'labels' => array(
'name' => _x( 'Templates', 'post type general name' ),
'singular_name' => _x( 'Template', 'post type singular name' ),
'add_new' => _x( 'Add New', 'Template' ),
'add_new_item' => __( 'Add New Template' ),
'new_item' => __( 'New Template' ),
'edit_item' => __( 'Edit Template' ),
'view_item' => __( 'View Template' ),
'all_items' => __( 'Templates' ),
'search_items' => __( 'Search Templates' ),
'parent_item_colon' => __( 'Parent Template:' ),
'not_found' => __( 'No templates found.' ),
'not_found_in_trash' => __( 'No templates found in Trash.' ),
'archives' => __( 'Template archives' ),
'insert_into_item' => __( 'Insert into template' ),
'uploaded_to_this_item' => __( 'Uploaded to this template' ),
'filter_items_list' => __( 'Filter templates list' ),
'items_list_navigation' => __( 'Templates list navigation' ),
'items_list' => __( 'Templates list' ),
),
'description' => __( 'Templates to include in your theme.' ),
'public' => false,
'_builtin' => true, /* internal use only. don't use this when registering your own post type. */
'has_archive' => false,
'show_ui' => false,
'show_in_menu' => false,
'show_in_rest' => true,
'rewrite' => false,
'rest_base' => 'templates',
'rest_controller_class' => 'WP_REST_Templates_Controller',
'capability_type' => array( 'template', 'templates' ),
'capabilities' => array(
'create_posts' => 'edit_theme_options',
'delete_posts' => 'edit_theme_options',
'delete_others_posts' => 'edit_theme_options',
'delete_private_posts' => 'edit_theme_options',
'delete_published_posts' => 'edit_theme_options',
'edit_posts' => 'edit_theme_options',
'edit_others_posts' => 'edit_theme_options',
'edit_private_posts' => 'edit_theme_options',
'edit_published_posts' => 'edit_theme_options',
'publish_posts' => 'edit_theme_options',
'read' => 'edit_theme_options',
'read_private_posts' => 'edit_theme_options',
),
'map_meta_cap' => true,
'supports' => array(
'title',
'slug',
'excerpt',
'editor',
'revisions',
'author',
),
)
);
register_post_type(
'wp_template_part',
array(
'labels' => array(
'name' => _x( 'Template Parts', 'post type general name' ),
'singular_name' => _x( 'Template Part', 'post type singular name' ),
'add_new' => _x( 'Add New', 'Template Part' ),
'add_new_item' => __( 'Add New Template Part' ),
'new_item' => __( 'New Template Part' ),
'edit_item' => __( 'Edit Template Part' ),
'view_item' => __( 'View Template Part' ),
'all_items' => __( 'Template Parts' ),
'search_items' => __( 'Search Template Parts' ),
'parent_item_colon' => __( 'Parent Template Part:' ),
'not_found' => __( 'No template parts found.' ),
'not_found_in_trash' => __( 'No template parts found in Trash.' ),
'archives' => __( 'Template part archives' ),
'insert_into_item' => __( 'Insert into template part' ),
'uploaded_to_this_item' => __( 'Uploaded to this template part' ),
'filter_items_list' => __( 'Filter template parts list' ),
'items_list_navigation' => __( 'Template parts list navigation' ),
'items_list' => __( 'Template parts list' ),
),
'description' => __( 'Template parts to include in your templates.' ),
'public' => false,
'_builtin' => true, /* internal use only. don't use this when registering your own post type. */
'has_archive' => false,
'show_ui' => false,
'show_in_menu' => false,
'show_in_rest' => true,
'rewrite' => false,
'rest_base' => 'template-parts',
'rest_controller_class' => 'WP_REST_Templates_Controller',
'map_meta_cap' => true,
'capabilities' => array(
'create_posts' => 'edit_theme_options',
'delete_posts' => 'edit_theme_options',
'delete_others_posts' => 'edit_theme_options',
'delete_private_posts' => 'edit_theme_options',
'delete_published_posts' => 'edit_theme_options',
'edit_posts' => 'edit_theme_options',
'edit_others_posts' => 'edit_theme_options',
'edit_private_posts' => 'edit_theme_options',
'edit_published_posts' => 'edit_theme_options',
'publish_posts' => 'edit_theme_options',
'read' => 'edit_theme_options',
'read_private_posts' => 'edit_theme_options',
),
'supports' => array(
'title',
'slug',
'excerpt',
'editor',
'revisions',
'author',
),
)
);
register_post_type(
'wp_global_styles',
array(
'label' => _x( 'Global Styles', 'post type general name' ),
'description' => __( 'Global styles to include in themes.' ),
'public' => false,
'_builtin' => true, /* internal use only. don't use this when registering your own post type. */
'show_ui' => false,
'show_in_rest' => false,
'rewrite' => false,
'capabilities' => array(
'read' => 'edit_theme_options',
'create_posts' => 'edit_theme_options',
'edit_posts' => 'edit_theme_options',
'edit_published_posts' => 'edit_theme_options',
'delete_published_posts' => 'edit_theme_options',
'edit_others_posts' => 'edit_theme_options',
'delete_others_posts' => 'edit_theme_options',
),
'map_meta_cap' => true,
'supports' => array(
'title',
'editor',
'revisions',
),
)
);
register_post_type(
'wp_navigation',
array(
'labels' => array(
'name' => _x( 'Navigation Menus', 'post type general name' ),
'singular_name' => _x( 'Navigation Menu', 'post type singular name' ),
'add_new' => _x( 'Add New', 'Navigation Menu' ),
'add_new_item' => __( 'Add New Navigation Menu' ),
'new_item' => __( 'New Navigation Menu' ),
'edit_item' => __( 'Edit Navigation Menu' ),
'view_item' => __( 'View Navigation Menu' ),
'all_items' => __( 'Navigation Menus' ),
'search_items' => __( 'Search Navigation Menus' ),
'parent_item_colon' => __( 'Parent Navigation Menu:' ),
'not_found' => __( 'No Navigation Menu found.' ),
'not_found_in_trash' => __( 'No Navigation Menu found in Trash.' ),
'archives' => __( 'Navigation Menu archives' ),
'insert_into_item' => __( 'Insert into Navigation Menu' ),
'uploaded_to_this_item' => __( 'Uploaded to this Navigation Menu' ),
'filter_items_list' => __( 'Filter Navigation Menu list' ),
'items_list_navigation' => __( 'Navigation Menus list navigation' ),
'items_list' => __( 'Navigation Menus list' ),
),
'description' => __( 'Navigation menus that can be inserted into your site.' ),
'public' => false,
'_builtin' => true, /* internal use only. don't use this when registering your own post type. */
'has_archive' => false,
'show_ui' => true,
'show_in_menu' => false,
'show_in_admin_bar' => false,
'show_in_rest' => true,
'rewrite' => false,
'map_meta_cap' => true,
'capabilities' => array(
'edit_others_posts' => 'edit_theme_options',
'delete_posts' => 'edit_theme_options',
'publish_posts' => 'edit_theme_options',
'create_posts' => 'edit_theme_options',
'read_private_posts' => 'edit_theme_options',
'delete_private_posts' => 'edit_theme_options',
'delete_published_posts' => 'edit_theme_options',
'delete_others_posts' => 'edit_theme_options',
'edit_private_posts' => 'edit_theme_options',
'edit_published_posts' => 'edit_theme_options',
'edit_posts' => 'edit_theme_options',
),
'rest_base' => 'navigation',
'rest_controller_class' => 'WP_REST_Posts_Controller',
'supports' => array(
'title',
'editor',
'revisions',
),
)
);
register_post_status(
'publish',
array(
'label' => _x( 'Published', 'post status' ),
'public' => true,
'_builtin' => true, /* internal use only. */
/* translators: %s: Number of published posts. */
'label_count' => _n_noop(
'Published <span class="count">(%s)</span>',
'Published <span class="count">(%s)</span>'
),
)
);
register_post_status(
'future',
array(
'label' => _x( 'Scheduled', 'post status' ),
'protected' => true,
'_builtin' => true, /* internal use only. */
/* translators: %s: Number of scheduled posts. */
'label_count' => _n_noop(
'Scheduled <span class="count">(%s)</span>',
'Scheduled <span class="count">(%s)</span>'
),
)
);
register_post_status(
'draft',
array(
'label' => _x( 'Draft', 'post status' ),
'protected' => true,
'_builtin' => true, /* internal use only. */
/* translators: %s: Number of draft posts. */
'label_count' => _n_noop(
'Draft <span class="count">(%s)</span>',
'Drafts <span class="count">(%s)</span>'
),
'date_floating' => true,
)
);
register_post_status(
'pending',
array(
'label' => _x( 'Pending', 'post status' ),
'protected' => true,
'_builtin' => true, /* internal use only. */
/* translators: %s: Number of pending posts. */
'label_count' => _n_noop(
'Pending <span class="count">(%s)</span>',
'Pending <span class="count">(%s)</span>'
),
'date_floating' => true,
)
);
register_post_status(
'private',
array(
'label' => _x( 'Private', 'post status' ),
'private' => true,
'_builtin' => true, /* internal use only. */
/* translators: %s: Number of private posts. */
'label_count' => _n_noop(
'Private <span class="count">(%s)</span>',
'Private <span class="count">(%s)</span>'
),
)
);
register_post_status(
'trash',
array(
'label' => _x( 'Trash', 'post status' ),
'internal' => true,
'_builtin' => true, /* internal use only. */
/* translators: %s: Number of trashed posts. */
'label_count' => _n_noop(
'Trash <span class="count">(%s)</span>',
'Trash <span class="count">(%s)</span>'
),
'show_in_admin_status_list' => true,
)
);
register_post_status(
'auto-draft',
array(
'label' => 'auto-draft',
'internal' => true,
'_builtin' => true, /* internal use only. */
'date_floating' => true,
)
);
register_post_status(
'inherit',
array(
'label' => 'inherit',
'internal' => true,
'_builtin' => true, /* internal use only. */
'exclude_from_search' => false,
)
);
register_post_status(
'request-pending',
array(
'label' => _x( 'Pending', 'request status' ),
'internal' => true,
'_builtin' => true, /* internal use only. */
/* translators: %s: Number of pending requests. */
'label_count' => _n_noop(
'Pending <span class="count">(%s)</span>',
'Pending <span class="count">(%s)</span>'
),
'exclude_from_search' => false,
)
);
register_post_status(
'request-confirmed',
array(
'label' => _x( 'Confirmed', 'request status' ),
'internal' => true,
'_builtin' => true, /* internal use only. */
/* translators: %s: Number of confirmed requests. */
'label_count' => _n_noop(
'Confirmed <span class="count">(%s)</span>',
'Confirmed <span class="count">(%s)</span>'
),
'exclude_from_search' => false,
)
);
register_post_status(
'request-failed',
array(
'label' => _x( 'Failed', 'request status' ),
'internal' => true,
'_builtin' => true, /* internal use only. */
/* translators: %s: Number of failed requests. */
'label_count' => _n_noop(
'Failed <span class="count">(%s)</span>',
'Failed <span class="count">(%s)</span>'
),
'exclude_from_search' => false,
)
);
register_post_status(
'request-completed',
array(
'label' => _x( 'Completed', 'request status' ),
'internal' => true,
'_builtin' => true, /* internal use only. */
/* translators: %s: Number of completed requests. */
'label_count' => _n_noop(
'Completed <span class="count">(%s)</span>',
'Completed <span class="count">(%s)</span>'
),
'exclude_from_search' => false,
)
);
}
要使用` get_users `函数获取所有用户列表，可以按照以下步骤进行：
1. 使用` get_users `函数调用获取用户列表：
$users = get_users();
2. 您可以按需使用参数来过滤结果。例如，您可以通过角色、用户ID、用户登录名等过滤用户列表。以下是一个根据用户角色为过滤条件的示例：
$users = get_users( array(
'role' => 'subscriber' // 将角色名称替换为您要过滤的角色
) );
在上述示例中，将` role `参数设置为所需的角色名称来过滤用户列表。
3. 您可以使用循环遍历获取的用户列表，并访问每个用户的属性。例如，以下示例将显示每个用户的用户名和电子邮件地址：
foreach( $users as $user ) {
echo '用户名：' . $user->user_login . ', 电子邮件：' . $user->user_email . ;
}
在上述示例中，通过` $user->user_login `和` $user->user_email `访问每个用户的用户名和电子邮件地址。
请注意，` get_users `函数默认返回所有用户，并可以根据需要使用更多参数进行过滤。您可以参阅WordPress官方文档中的` get_users `函数文档，了解更多可用参数和用法示例。
总结起来，使用` get_users `函数获取所有用户列表的步骤是：
get_users `函数获取用户列表。在WordPress中，可以使用WP_PLUGIN_DIR和WP_PLUGIN_URL常量来定义插件的目录路径和URL。
1. `WP_PLUGIN_DIR`：这是一个常量，用于定义插件的目录路径（文件系统路径）。您可以使用以下代码在插件文件中访问该常量：
$plugin_dir = WP_PLUGIN_DIR . '/your-plugin-folder/';
在上述代码中，将"your-plugin-folder"替换为您插件的实际文件夹名称。使用该常量，您可以获取插件文件的完整路径。
2. `WP_PLUGIN_URL`：这是一个常量，用于定义插件的URL（用于在网页上访问插件文件）。以下是一个使用该常量的示例：
$plugin_url = WP_PLUGIN_URL . '/your-plugin-folder/';
同样，请将"your-plugin-folder"替换为您插件的实际文件夹名称。使用该常量，您可以获取插件在网页上的完整URL。
请注意，`WP_PLUGIN_DIR`和`WP_PLUGIN_URL`常量在WordPress版本2.6之后引入。从WordPress 5.5版本开始，这两个常量被标记为过时（deprecated），因为WordPress更倾向于使用新的插件文件结构。如果您正在开发新插件，建议使用新的插件文件结构和相关函数。
在新的插件文件结构中，可以使用以下函数来获取插件的目录路径和URL：
- `plugin_dir_path()`：获取插件目录路径。
- `plugin_dir_url()`：获取插件URL。
这些函数会自动将插件的版本、多站点和SSL等考虑因素纳入计算。
总结起来，使用`WP_PLUGIN_DIR`和`WP_PLUGIN_URL`常量定义插件的目录和URL的方法是：
$plugin_dir = WP_PLUGIN_DIR . '/your-plugin-folder/'; $plugin_url = WP_PLUGIN_URL . '/your-plugin-folder/';
但请注意，这两个常量已被标记为过时，建议使用新的插件文件结构和相关函数来获取插件的路径和URL。
使用PHP在WordPress中添加自定义功能可以通过以下方式实现：
下面是一个实操示例。
要在WordPress中添加自定义功能，可以按照以下步骤使用PHP编写并添加自定义功能：
// 添加自定义功能示例
// 1. 创建自定义短代码
function custom_shortcode() {
return '这是我的自定义短代码内容';
}
add_shortcode('custom', 'custom_shortcode');
// 2. 自定义小工具
function custom_widget() {
echo '这是我的自定义小工具内容';
}
register_widget('custom_widget');
// 3. 自定义菜单
function custom_menu() {
register_nav_menu('custom-menu', '自定义菜单');
}
add_action('after_setup_theme', 'custom_menu');
// 4. 自定义页面模板
function custom_page_template() {
/* Template Name: 自定义模板 */
// 自定义模板的内容和样式
}
请注意，修改主题文件可以在主题更新时丢失，因此建议在进行任何更改之前备份functions.php文件。此外，为避免不必要的错误和冲突，建议在添加自定义功能前先了解WordPress开发文档和最佳实践，以确保正确、安全地实现所需的自定义功能。
使用 do_action 函数可以触发一个钩子函数。do_action 函数的参数与要触发的钩子函数的参数相同。
例如，触发save_post钩子函数的代码如下：
do_action( 'save_post', $post_ID, $post );
这里，$post_ID 和 $post 是传递给钩子函数的参数。
使用 wp_get_current_user 获取当前登录用户的信息：
$current_user = wp_get_current_user(); // 获取当前用户的ID $user_id = $current_user->ID; // 获取当前用户的用户名 $user_login = $current_user->user_login; // 获取当前用户的邮箱 $user_email = $current_user->user_email; // 获取当前用户的显示名称 $display_name = $current_user->display_name;
