Function Reference/get id from blogname

Description

Given a blog's (subdomain or directory) name, retrieve it's id.

<?php get_id_from_blogname( $slug ) ?>

$slug

(string) (required) The blog's slug

Default: None

Getting the the 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();

Since: 3.0.0

get_id_from_blogname() is located in wp-includes/ms-blogs.php

See also index of Function Reference and index of Template Tags.