<?php

namespace App\Helpers;

class UpdateDataHelper
{
    /**
     * @param \Illuminate\Database\Query\Builder $model
     * @param array                              $whereCondition
     * @param array                              $updateData
     *
     * @return bool
     */
    public static function getUpdateUserData($model, $whereCondition, $updateData)
    {
        $updateModel = $model->where($whereCondition)->first();
        if (null !== $updateModel) {
            foreach ($updateData as $updateColumn => $updateDetails) {
                $updateModel[$updateColumn] = $updateDetails;
            }
            $updateModel->save();

            return true;
        }

        return false;
    }
}

 19     Cannot access offset (int|string) on object.   //  $updateModel[$updateColumn] = $updateDetails;
 21     Call to an undefined method object::save().  //  $updateModel->save();

    /**
     * Execute the query and get the first result.
     *
     * @param  array|string  $columns
     * @return \Illuminate\Database\Eloquent\Model|object|static|null
     */
    public function first($columns = ['*'])
    {
        return $this->take(1)->get($columns)->first();
    }