is_user_option_local( string $key, int $user_id, int $blog_id )

Source

File: wp-includes/ms-deprecated.php

function is_user_option_local( $key, $user_id = 0, $blog_id = 0 ) {
	global $wpdb;

	_deprecated_function( __FUNCTION__, '4.9.0' );

	$current_user = wp_get_current_user();
	if ( $blog_id == 0 ) {
		$blog_id = get_current_blog_id();
	}
	$local_key = $wpdb->get_blog_prefix( $blog_id ) . $key;

	return isset( $current_user->$local_key );
}