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    <h3>Editing: MongoDBFormatter.php</h3>
    <textarea name="content" rows="20" cols="80">&lt;?php declare(strict_types=1);

/*
 * This file is part of the Monolog package.
 *
 * (c) Jordi Boggiano &lt;j.boggiano@seld.be&gt;
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 */

namespace Monolog\Formatter;

use MongoDB\BSON\Type;
use MongoDB\BSON\UTCDateTime;
use Monolog\Utils;

/**
 * Formats a record for use with the MongoDBHandler.
 *
 * @author Florian Plattner &lt;me@florianplattner.de&gt;
 */
class MongoDBFormatter implements FormatterInterface
{
    /** @var bool */
    private $exceptionTraceAsString;
    /** @var int */
    private $maxNestingLevel;
    /** @var bool */
    private $isLegacyMongoExt;

    /**
     * @param int  $maxNestingLevel        0 means infinite nesting, the $record itself is level 1, $record['context'] is 2
     * @param bool $exceptionTraceAsString set to false to log exception traces as a sub documents instead of strings
     */
    public function __construct(int $maxNestingLevel = 3, bool $exceptionTraceAsString = true)
    {
        $this-&gt;maxNestingLevel = max($maxNestingLevel, 0);
        $this-&gt;exceptionTraceAsString = $exceptionTraceAsString;

        $this-&gt;isLegacyMongoExt = extension_loaded('mongodb') &amp;&amp; version_compare((string) phpversion('mongodb'), '1.1.9', '&lt;=');
    }

    /**
     * {@inheritDoc}
     *
     * @return mixed[]
     */
    public function format(array $record): array
    {
        /** @var mixed[] $res */
        $res = $this-&gt;formatArray($record);

        return $res;
    }

    /**
     * {@inheritDoc}
     *
     * @return array&lt;mixed[]&gt;
     */
    public function formatBatch(array $records): array
    {
        $formatted = [];
        foreach ($records as $key =&gt; $record) {
            $formatted[$key] = $this-&gt;format($record);
        }

        return $formatted;
    }

    /**
     * @param  mixed[]        $array
     * @return mixed[]|string Array except when max nesting level is reached then a string &quot;[...]&quot;
     */
    protected function formatArray(array $array, int $nestingLevel = 0)
    {
        if ($this-&gt;maxNestingLevel &gt; 0 &amp;&amp; $nestingLevel &gt; $this-&gt;maxNestingLevel) {
            return '[...]';
        }

        foreach ($array as $name =&gt; $value) {
            if ($value instanceof \DateTimeInterface) {
                $array[$name] = $this-&gt;formatDate($value, $nestingLevel + 1);
            } elseif ($value instanceof \Throwable) {
                $array[$name] = $this-&gt;formatException($value, $nestingLevel + 1);
            } elseif (is_array($value)) {
                $array[$name] = $this-&gt;formatArray($value, $nestingLevel + 1);
            } elseif (is_object($value) &amp;&amp; !$value instanceof Type) {
                $array[$name] = $this-&gt;formatObject($value, $nestingLevel + 1);
            }
        }

        return $array;
    }

    /**
     * @param  mixed          $value
     * @return mixed[]|string
     */
    protected function formatObject($value, int $nestingLevel)
    {
        $objectVars = get_object_vars($value);
        $objectVars['class'] = Utils::getClass($value);

        return $this-&gt;formatArray($objectVars, $nestingLevel);
    }

    /**
     * @return mixed[]|string
     */
    protected function formatException(\Throwable $exception, int $nestingLevel)
    {
        $formattedException = [
            'class' =&gt; Utils::getClass($exception),
            'message' =&gt; $exception-&gt;getMessage(),
            'code' =&gt; (int) $exception-&gt;getCode(),
            'file' =&gt; $exception-&gt;getFile() . ':' . $exception-&gt;getLine(),
        ];

        if ($this-&gt;exceptionTraceAsString === true) {
            $formattedException['trace'] = $exception-&gt;getTraceAsString();
        } else {
            $formattedException['trace'] = $exception-&gt;getTrace();
        }

        return $this-&gt;formatArray($formattedException, $nestingLevel);
    }

    protected function formatDate(\DateTimeInterface $value, int $nestingLevel): UTCDateTime
    {
        if ($this-&gt;isLegacyMongoExt) {
            return $this-&gt;legacyGetMongoDbDateTime($value);
        }

        return $this-&gt;getMongoDbDateTime($value);
    }

    private function getMongoDbDateTime(\DateTimeInterface $value): UTCDateTime
    {
        return new UTCDateTime((int) floor(((float) $value-&gt;format('U.u')) * 1000));
    }

    /**
     * This is needed to support MongoDB Driver v1.19 and below
     *
     * See https://github.com/mongodb/mongo-php-driver/issues/426
     *
     * It can probably be removed in 2.1 or later once MongoDB's 1.2 is released and widely adopted
     */
    private function legacyGetMongoDbDateTime(\DateTimeInterface $value): UTCDateTime
    {
        $milliseconds = floor(((float) $value-&gt;format('U.u')) * 1000);

        $milliseconds = (PHP_INT_SIZE == 8) //64-bit OS?
            ? (int) $milliseconds
            : (string) $milliseconds;

        // @phpstan-ignore-next-line
        return new UTCDateTime($milliseconds);
    }
}
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