PHP-cli-factorio-updater/scripts/func.downloadFile.php

<?php

/**
 * Namespace for PHP-CURL related classes and functions.
 * @package NAE\Functions\Curl
 */
namespace NAE\Functions\Curl;

/**
 * Lädt eine Dei herunter mit Hilfe von php-curl.
 * @param string $fileDestination Zielpfad
 * @param string $fileSource Quellpfad/URL
 * @return bool Download Erfolgreich? (only works when the file size is known upfront from headers)
 */
function downloadFile(string $fileDestination, string $fileSource) : bool {

    $ch = \curl_init($fileSource);

    $fp = \fopen($fileDestination, 'wb');

    \curl_setopt($ch, CURLOPT_FILE, $fp);
    \curl_setopt($ch, CURLOPT_HEADER, 0);
    \curl_setopt($ch, CURLOPT_FOLLOWLOCATION, true);

    \curl_exec($ch);
    $info = \curl_getinfo($ch);

    \curl_close($ch);
    \fclose($fp);

    return ( $info["download_content_length"]==$info["size_download"] ); // only works when the file size is known upfront from headers

}