Method to obtain the changes of a model in Laravel

Log.php

<?php
if (!function_exists('getChanges')) {
    function getChanges(Model $model, $original = null)
    {
        $hiddenFields = ['FechaRegistro', 'FechaModificacion', 'rbupdate', 'updated_at', 'created_at', 'Id'];
        $modifiedModel = $model->replicate();
        $originalModel = $original ? $original : $model->refresh();
        $changes = ' se ha cambiado ';
        foreach ($originalModel->getAttributes() as $key => $originalValue) {
            if (in_array($key, $hiddenFields)) continue;
            $modifiedValue = $modifiedModel->getAttribute($key);
            $changes .= $originalValue != $modifiedValue ? "[{$key}: de \"{$originalValue}\" a \"{$modifiedValue}\"], " : '';
        }
        return $changes;
    }
}