File: examples/newscountBox.lib

<?php

// Gets the quantity of news of the category
// entry: none
// exit: quantity
// params: category of newss

class newscountBox extends Box
{
  public function __construct()
  {
    parent::__construct();

    $this->addInput('CATEGORY', Box::STRING, 'main');
    $this->addOutput('quantity', Box::INTEGER);
  }

  public function run()
  {
    // Simulates a connection to a database and gets back
    // 7 news

    // Here we should make a query like
    // select count(*) from news where status='published';

    $this->setOutputData('quantity', 7);
  }

}

?>