$uploaded_url = '/uploads/myfile.pdf'; $absolute_path = realpath($_SERVER["DOCUMENT_ROOT"] . $uploaded_url); echo $absolute_path; // /var/www/html/uploads/myfile.pdf
$uploaded_url = '/uploads/myfile.pdf'; $base_url = "https://" . $_SERVER['HTTP_HOST'] . "/"; $absolute_path = $base_url . ltrim($uploaded_url, "/"); echo $absolute_path; // https://example.com/uploads/myfile.pdfThis example constructs an absolute URL by concatenating the base URL with the uploaded URL. The base URL is constructed using the $_SERVER['HTTP_HOST'] variable, which represents the hostname of the current web request. Package/Library: There is no specific package or library mentioned in the examples above as they are using built-in PHP functions.