What are some free providers that allow the use of the file_get_contents function in PHP?

When using the file_get_contents function in PHP to fetch external files, some free providers may block this function for security reasons. To solve this issue, you can use a proxy service that allows you to fetch external content through their servers. This way, you can bypass any restrictions imposed by the free providers and successfully retrieve the external file.

$url = 'https://example.com/file.txt';
$proxy_url = 'https://proxy-service.com?url=' . urlencode($url);
$content = file_get_contents($proxy_url);

echo $content;