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Edit File: AbstractError.php

<?php
/**
 * Slim Framework (https://slimframework.com)
 *
 * @license https://github.com/slimphp/Slim/blob/3.x/LICENSE.md (MIT License)
 */

namespace Slim\Handlers;

use Exception;
use Throwable;

abstract class AbstractError extends AbstractHandler
{
    /**
     * @var bool
     */
    protected $displayErrorDetails;

/**
     * @param bool $displayErrorDetails Set to true to display full details
     */
    public function __construct($displayErrorDetails = false)
    {
        $this->displayErrorDetails = (bool) $displayErrorDetails;
    }

/**
     * Write to the error log if displayErrorDetails is false
     *
     * @param Exception|Throwable $throwable
     *
     * @return void
     */
    protected function writeToErrorLog($throwable)
    {
        if ($this->displayErrorDetails) {
            return;
        }

$message = 'Slim Application Error:' . PHP_EOL;
        $message .= $this->renderThrowableAsText($throwable);
        while ($throwable = $throwable->getPrevious()) {
            $message .= PHP_EOL . 'Previous error:' . PHP_EOL;
            $message .= $this->renderThrowableAsText($throwable);
        }

$message .= PHP_EOL . 'View in rendered output by enabling the "displayErrorDetails" setting.' . PHP_EOL;

$this->logError($message);
    }

/**
     * Render error as Text.
     *
     * @param Exception|Throwable $throwable
     *
     * @return string
     */
    protected function renderThrowableAsText($throwable)
    {
        $text = sprintf('Type: %s' . PHP_EOL, get_class($throwable));

if ($code = $throwable->getCode()) {
            $text .= sprintf('Code: %s' . PHP_EOL, $code);
        }

if ($message = $throwable->getMessage()) {
            $text .= sprintf('Message: %s' . PHP_EOL, htmlentities($message));
        }

if ($file = $throwable->getFile()) {
            $text .= sprintf('File: %s' . PHP_EOL, $file);
        }

if ($line = $throwable->getLine()) {
            $text .= sprintf('Line: %s' . PHP_EOL, $line);
        }

if ($trace = $throwable->getTraceAsString()) {
            $text .= sprintf('Trace: %s', $trace);
        }

return $text;
    }

/**
     * Wraps the error_log function so that this can be easily tested
     *
     * @param string $message
     */
    protected function logError($message)
    {
        error_log($message);
    }
}

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