cakephp/templates/element/exception_stack_trace_nav.php

<?php
/**
 * CakePHP(tm) : Rapid Development Framework (https://cakephp.org)
 * Copyright (c) Cake Software Foundation, Inc. (https://cakefoundation.org)
 *
 * Licensed under The MIT License
 * For full copyright and license information, please see the LICENSE.txt
 * Redistributions of files must retain the above copyright notice.
 *
 * @copyright     Copyright (c) Cake Software Foundation, Inc. (https://cakefoundation.org)
 * @link          https://cakephp.org CakePHP(tm) Project
 * @since         3.0.0
 * @license       https://opensource.org/licenses/mit-license.php MIT License
 * @var array $trace
 * @var \Throwable $error
 * @var array<\Throwable> $exceptions
 */
use Cake\Error\Debugger;
use function Cake\Core\h;
?>
<a href="#" class="toggle-link toggle-vendor-frames">Toggle Vendor Stack Frames</a>

<ul>
<?php foreach ($exceptions as $level => $exc): ?>
    <?php if ($level > 0): ?>
        <li class="stack-previous">
            <span class="stack-function">Caused by</span> <?= h($exc::class) ?>
        </li>
    <?php endif; ?>
    <?php $stackTrace = Debugger::formatTrace($exc->getTrace(), ['format' => 'array']); ?>
    <?php foreach ($stackTrace as $i => $stack): ?>
        <?php
        $class = isset($stack['file']) && str_contains($stack['file'], APP) ? 'vendor-frame' : 'app-frame';
        $class .= $i == 0 ? ' active' : '';
        ?>
        <li class="stack-frame <?= $class ?>">
            <a href="#" data-target="stack-frame-<?= $i ?>">
                <?php if (isset($stack['class'])): ?>
                    <span class="stack-function"><?= h($stack['class'] . $stack['type'] . $stack['function']) ?></span>
                <?php elseif (isset($stack['function'])): ?>
                    <span class="stack-function"><?= h($stack['function']) ?></span>
                <?php endif; ?>
                <span class="stack-file">
                <?php if (isset($stack['file'], $stack['line'])): ?>
                    <?= h(Debugger::trimPath($stack['file'])) ?>:<?= $stack['line'] ?>
                <?php else: ?>
                    [internal function]
                <?php endif ?>
                </span>
            </a>
        </li>
    <?php endforeach; ?>
<?php endforeach; ?>
</ul>