Server to Server File Transfer with PHP script

gistfile1.txt

<?php
# Author: ServerOK
# Web: https://serverok.in/server-to-server-file-transfer-with-php-script

# URL of the file to be downloaded
$source_url = 'https://example.com/backup.zip';

$filename = basename(parse_url($source_url, PHP_URL_PATH));
$destination_path = __DIR__ . '/' . $filename;

function download($source, $destination) {
    $ch = curl_init($source);
    $fp = fopen($destination, 'w+');
    curl_setopt($ch, CURLOPT_FILE, $fp);
    curl_setopt($ch, CURLOPT_FOLLOWLOCATION, true);
    curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);
    curl_setopt($ch, CURLOPT_USERAGENT, 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/91.0.4472.124 Safari/537.36');
    $success = curl_exec($ch);
    if ($success === false) {
        echo 'cURL Error: ' . curl_error($ch);
        return false;
    }
    curl_close($ch);
    fclose($fp);
    return true;
}

$success = download($source_url, $destination_path);

if ($success) {
    echo '<p style="color: green; font-weight: bold; font-size: 16px;">File transferred successfully to ' . htmlspecialchars($destination_path) . '</p>';
} else {
    echo '<p style="color: red; font-weight: bold; font-size: 16px;">File transfer failed</p>';
}