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wordpress函数get_id_from_blogname()用法示例

get_id_from_blogname( string $slug )

Retrieves a sites ID given its (subdomain or directory) slug.


描述


参数

$slug

(string)
(Required)
A site’s slug.

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返回值

(int|null) The site ID, or null if no site is found for the given slug.


源代码

File: wp-includes/ms-blogs.php

function get_id_from_blogname( $slug ) {
	$current_network = get_network();
	$slug = trim( $slug, '/' );

	if ( is_subdomain_install() ) {
		$domain = $slug . '.' . preg_replace( '|^www\.|', '', $current_network->domain );
		$path = $current_network->path;
	} else {
		$domain = $current_network->domain;
		$path = $current_network->path . $slug . '/';
	}

	$site_ids = get_sites( array(
		'number' => 1,
		'fields' => 'ids',
		'domain' => $domain,
		'path' => $path,
	) );

	if ( empty( $site_ids ) ) {
		return null;
	}

	return array_shift( $site_ids );
}

更新日志

Version 描述
MU MU
4.7.0 Introduced.

相关函数

Uses

  • wp-includes/ms-blogs.php:
    get_network()
  • wp-includes/ms-blogs.php:
    get_sites()
  • wp-includes/ms-load.php:
    is_subdomain_install()

Used By

  • wp-admin/includes/ms.php:
    avoid_blog_page_permalink_collision()
  • wp-includes/ms-blogs.php:
    get_blog_details()

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    Contributed by Codex

    Getting id of a blog by name ($slug)

    $slug = 'first-site';
    $id = get_id_from_blogname( $slug );

    Switching blogs based on the blogs name ($slug)

    $slug = 'another-site';
    $id = get_id_from_blogname( $slug );
    switch_to_blog( $id );
    
    // Do great things.
    restore_current_blog();

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