wp-includes/ms-deprecated.php:575Store basic site info in the blogs table.
$domainstring$pathstring$site_idintint|falsefunction insert_blog($domain, $path, $site_id) { _deprecated_function( __FUNCTION__, '5.1.0', 'wp_insert_site()' ); $data = array( 'domain' => $domain, 'path' => $path, 'site_id' => $site_id, ); $site_id = wp_insert_site( $data ); if ( is_wp_error( $site_id ) ) { return false; } clean_blog_cache( $site_id ); return $site_id;}Introduced in MU (3.0.0). Unchanged from 6.7.7 through 7.1.0.
Signature, return type and hooks compared across 5 parsed releases.
src/wp-includes/ms-deprecated.php, and regenerated for each WordPress release so it tracks the code rather than a snapshot of it.