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函数文档

is_author()

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概述

is_author() 是 WordPress 中的一个条件标签函数，用于判断当前查询是否为现有作者存档页面。它可接受可选参数来检查特定作者。

关键要点

  • 函数返回布尔值，指示查询是否针对现有作者存档页面。
  • 可选参数 $author 可以是用户 ID、昵称、nicename 或其数组，用于匹配特定作者。
  • 在查询运行前调用此函数会触发 _doing_it_wrong() 并返回 false。
  • 函数内部调用 WP_Query::is_author() 实现核心逻辑。

代码示例

is_author();
// 当显示任何作者页面时。

is_author('4');
// 当显示用户 ID 为 4 的作者存档页面时。

is_author('Vivian');
// 当显示昵称为 "Vivian" 的作者存档页面时。

is_author('john-jones');
// 当显示 nicename 为 "john-jones" 的作者存档页面时。

is_author(array(4,'john-jones','Vivian'));
// 当显示作者为用户 ID 4、nicename "john-jones" 或昵称 "Vivian" 的存档页面时。
// 注意：数组功能在版本 2.5 中添加。
📄 原文内容

Determines whether the query is for an existing author archive page.

Description

If the $author parameter is specified, this function will additionally check if the query is for one of the authors specified.

For more information on this and similar theme functions, check out the Conditional Tags article in the Theme Developer Handbook.

Parameters

$authorint|string|int[]|string[]optional
User ID, nickname, nicename, or array of such to check against. Default empty.

Return

bool Whether the query is for an existing author archive page.

Source

function is_author( $author = '' ) {
	global $wp_query;

	if ( ! isset( $wp_query ) ) {
		_doing_it_wrong( __FUNCTION__, __( 'Conditional query tags do not work before the query is run. Before then, they always return false.' ), '3.1.0' );
		return false;
	}

	return $wp_query->is_author( $author );
}

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Uses Description
WP_Query::is_author()wp-includes/class-wp-query.php

Determines whether the query is for an existing author archive page.
__()wp-includes/l10n.php

Retrieves the translation of $text.
_doing_it_wrong()wp-includes/functions.php

Marks something as being incorrectly called.

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Used by Description
rest_get_queried_resource_route()wp-includes/rest-api.php

Gets the REST route for the currently queried object.
wp_get_document_title()wp-includes/general-template.php

Returns document title for the current page.
get_the_archive_description()wp-includes/general-template.php

Retrieves the description for an author, post type, or term archive.
get_the_archive_title()wp-includes/general-template.php

Retrieves the archive title based on the queried object.
feed_links_extra()wp-includes/general-template.php

Displays the links to the extra feeds such as category feeds.
wp_title()wp-includes/general-template.php

Displays or retrieves page title for all areas of blog.
WP::handle_404()wp-includes/class-wp.php

Set the Headers for 404, if nothing is found for requested URL.
wp_dropdown_users()wp-includes/user.php

Creates dropdown HTML content of users.
get_body_class()wp-includes/post-template.php

Retrieves an array of the class names for the body element.
redirect_canonical()wp-includes/canonical.php

Redirects incoming links to the proper URL based on the site url.

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Changelog

Version Description
1.5.0 Introduced.

User Contributed Notes

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    Codex


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    Examples

    is_author();
// When any Author page is being displayed.

is_author('4');
// When the archive page for Author number (ID) 4 is being displayed.

is_author('Vivian');
// When the archive page for the Author with Nickname "Vivian" is being displayed.

is_author('john-jones');
// When the archive page for the Author with Nicename "john-jones" is being displayed.

is_author(array(4,'john-jones','Vivian'));
// When the archive page for the author is either user ID 4, or user_nicename "john-jones",
// or nickname "Vivian".  Note: the array ability was added at Version 2.5.