Stack display tips

core_stack_display_random.php

<?php
use Concrete\Core\Block\View\BlockView;

defined('C5_EXECUTE') or die('Access Denied.');

$c = Page::getCurrentPage();
$cp = new Permissions($c);
if ($cp->canViewPageVersions()) {
    $stack = Stack::getByID($stID);
} else {
    $stack = Stack::getByID($stID, 'ACTIVE');
}
if ($stack) {
    $ax = Area::get($stack, STACKS_AREA_NAME);
    $axp = new Permissions($ax);
    if ($axp->canRead()) {
        $blocks = $ax->getAreaBlocksArray();
        $v = \View::getRequestInstance();
        shuffle($blocks);
        foreach ($blocks as $block) {
            $blockview = new BlockView($block);
            $blockview->setAreaObject($ax);
            $p = new Permissions($block);
            if ($p->canViewBlock()) {
                if (!$c->isEditMode()) {
                    echo $stack->enclosingStart;
                }
                $blockview->render('view');
                if (!$c->isEditMode()) {
                    echo $stack->enclosingEnd;
                }
            }
            break;
        }
    }
}

stack_page_template.php

<?php
$stack = \Stack::getByName($sidebarPopularAreaName, 'ACTIVE');
$ax = Area::get($stack, STACKS_AREA_NAME);
$axp = new Permissions($ax);
if ($axp->canRead()) {
    $ax->disableControls();
    $ax->setCustomTemplate('block_handle+1', 'template_name.php');
    $ax->setCustomTemplate('block_handle_2', 'template_name.php');
    $ax->display($stack);
}
?>