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Function Reference/switch to blog

Switch the current blog to a different blog. switch_to_blog(), is useful if you need to pull posts or other information from other blogs.

You can switch back afterwards using restore_current_blog().

Things that aren't switched:

$new_blog

(integer) (required) The id of the blog you want to switch to. Default: current blog

Default: None

$validate

(boolean) (optional) Whether to check if $new_blog exists before proceeding

Default: false

false if $validate=true is passed and no such blog exists; otherwise true (even when "switching" to the current blog).

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

You can switch back afterwards using restore_current_blog()