How to set up task scheduling in Laravel 4?

Create a file like the following in app/commands, replace my comment in the fire method with your update function.

<?php

use Illuminate\Console\Command;
use Symfony\Component\Console\Input\InputOption;
use Symfony\Component\Console\Input\InputArgument;

class setCreditToZero extends Command {

    /**
     * The console command name.
     *
     * @var string
     */
    protected $name = 'set:zero';

    /**
     * The console command description.
     *
     * @var string
     */
    protected $description = 'Command description.';

    /**
     * Create a new command instance.
     *
     * @return void
     */
    public function __construct()
    {
        parent::__construct();
    }

    /**
     * Execute the console command.
     *
     * @return mixed
     */
    public function fire()
    {
        // your update function here
    }

    /**
     * Get the console command arguments.
     *
     * @return array
     */
    protected function getArguments()
    {
        return [

        ];
    }

    /**
     * Get the console command options.
     *
     * @return array
     */
    protected function getOptions()
    {
        return [

        ];
    }

}

Register your command in app/start/artisan.php

Artisan::add(new setCreditToZero);

Now set a cronjob using command on your terminal

crontab -e

And in this file set a cronjob with this line

0 0 * * * /usr/bin/php /path/to/laravel/baseDir/artisan set:zero

And you should be good to go