Example of using Phalcon Query Builder and Columns method

QueryBuilderQuery.php

<?php

$qb = $this->modelsManager->createBuilder()
    ->columns(['e.*', 'i.*'])
    ->addFrom('Backend\Models\Event', 'e')
    ->innerJoin('Backend\Models\Image', 'e.id = i.event_id', 'i')
    ->where('e.id = :id:', ['id' => $some_id]);
    
$entries = $qb->getQuery()->execute();

if ($entries->count()) {
    foreach ($entries as $el) {
      echo "title = " . $el->e->getTitle() . "<br>";
      echo "joined image = " . $el->i->getImageSource();
    }
}