Exif information reading PHP library

<?php
error_reporting(-1);
ini_set('display_errors', 1);
ini_set('display_startup_errors', 1);
date_default_timezone_set('Europe/Brussels');
if (!is_file($autoloadFile = __DIR__ . '/../vendor/autoload.php')) {
    echo 'Could not find "vendor/autoload.php". Did you forget to run "composer install --dev"?' . PHP_EOL;
    exit(1);
}
$autoloader = require $autoloadFile;
define('PHPEXIF_TEST_ROOT', __DIR__);

Exif is an image file format, and its data storage is exactly the same as the JPEG format. In fact, the Exif format inserts digital photo information into the header of the JPEG format, including various shooting conditions such as aperture, shutter, white balance, ISO, focal length, date and time, as well as camera brand, model, color coding, shooting Recorded sounds as well as GPS global positioning system data, thumbnails, etc. You can view photos in Exif format using any image viewing software that can view JPEG files, but not all graphics programs can handle Exif information.

This is a PHP library for reading Exif information.