lib_functions.php

//Download remote file
function getUrlFile($url, $path)
    {
        $newfilename = $path;
        $file = fopen($url, "rb");
        if ($file) {
            $newfile = fopen($newfilename, "wb");
            if ($newfile)
                while (!feof($file)) {
                    fwrite($newfile, fread($file, 1024 * 8), 1024 * 8);
                }
        }
        if ($file) {
            fclose($file);
        }
        if ($newfile) {
            fclose($newfile);
        }
    }
$path = '/var/www/vhosts/test.com/httpdocs/shop/mpdf.zip';
$url = 'https://php-download.com/downloads/mpdf/mpdf/7.1.1.0/mpdf_mpdf_7.1.1.0_require.zip';
getUrlFile($url, $path);
//system('unzip myzip.zip');
$zip = new ZipArchive;
$res = $zip->open('mpdf2/mpdf.zip');
if ($res === TRUE) {
  $zip->extractTo('/var/www/vhosts/test.com/httpdocs/shop/');
  $zip->close();
  echo 'woot!';
} else {
  echo 'doh!';
}