简介

使用WordPress全局变量有多种原因。几乎所有WordPress产生的数据都可以在全局变量中找到。

请注意，与直接更改全局变量相比，在情况允许的条件下使用恰当的API功能会更好一点，

你需要先使用global $variable;全局化你的变量，以便能够使用全局变量。

"不推荐使用除以下列表之外的全局变量"

Inside the Loop variables

While inside the loop, these globals are set, containing information about the current post being processed.

• $post The whole post object.

• $authordata (object) Returns an object with information about the author, set alongside the last $post. Object described in Function_Reference/get_userdata.

• $currentday Day of the post.

• $currentmonth Month of the post.

• $page (int) The page of the post, as specified by the query var page.

• $pages (array)The content pages within a post, which were separated by <!--nextpage--> elements.

• $multipage (boolean)Returns true if the post has multiple pages, related to $page and $pages.

• $more (boolean) Returns true if there are multiple pages in the post, related to $page and $pages.

• $numpages (int) Returns the number of pages in the post, related to $page and $pages.

Browser Detection Booleans

These globals store data about which browser the user is on.

• $is_iphone (boolean) iPhone Safari

• $is_chrome (boolean) Google Chrome

• $is_safari (boolean) Safari

• $is_NS4 (boolean) Netscape 4

• $is_opera (boolean) Opera

• $is_macIE (boolean) Mac Internet Explorer

• $is_winIE (boolean) Windows Internet Explorer

• $is_gecko (boolean) FireFox

• $is_lynx (boolean)

• $is_IE (boolean) Internet Explorer

Web Server Detection Booleans

These globals store data about which web server WordPress is running on.

• $is_apache (boolean) Apache HTTP Server

• $is_IIS (boolean) Microsoft Internet Information Services (IIS)

• $is_iis7 (boolean) Microsoft Internet Information Services (IIS) v7.x

Version Variables

• $wp_version (string) The installed version of WordPress

• $wp_db_version (int) The version number of the database

• $tinymce_version (string) The installed version of TinyMCE

• $manifest_version (string) The cache manifest version

• $required_php_version (string) The version of PHP this install of WordPress requires

• $required_mysql_version (string) The version of MySQL this install of WordPress requires

Misc

• $super_admins (array) An array of user IDs that should be granted super admin privileges (multisite). This global is only set by the site owner (e.g., in wp-config.php), and contains an array of IDs of users who should have super admin privileges. If set it will override the list of super admins in the database.

• $wp_query (object) The global instance of the Class_Reference/WP_Query class.

• $wp_rewrite (object) The global instance of the Class_Reference/WP_Rewrite class.

• $wp (object) The global instance of the Class_Reference/WP class.

• $wpdb (object) The global instance of the Class_Reference/wpdb class.

• $wp_locale (object)

• $wp_admin_bar (WP_Admin_Bar)

• $wp_roles (WP_Roles)

• $wp_meta_boxes (object) Object containing all registered metaboxes, including their id‘s, args, callback functions and title for all post types including custom.

Admin Globals

• $pagenow (string) used in wp-admin See also get_current_screen() for the WordPress Admin Screen API

• $post_type (string) used in wp-admin

• $allowedposttags (array)

• $allowedtags (array)

• $menu (array)

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