src/Utils/Timestamp.php
public static function isMilliseconds($timestamp = null)
    {
        if (! $timestamp || $timestamp instanceof Carbon) {
            return false;
        }

        if (is_numeric($timestamp) && strlen((string) $timestamp) >= 12) {
            return true;
        }

        return false;
    }
public static function isMilliseconds($timestamp = null)
    {
        if (! $timestamp || $timestamp instanceof Carbon) {
            return false;
        }

        if (is_numeric($timestamp) && strlen((string) $timestamp) >= 12) {
            return true;
        }

        return false;
    }
public static function isMilliseconds ( $ timestamp = null ) { if ( ! $ timestamp || $ timestamp instanceof Carbon ) { return false ; } if ( is_numeric ( $ timestamp ) && strlen ( ( string ) $ timestamp ) >= 12 ) { return true ; } return false ; }
Truthy for checking if a timestamp is in milliseconds

@param Javascript unix timestamp (miniseconds) $timestamp
@return Bool
Truthy for checking if a timestamp is in milliseconds