How to download and Extract Uncompress zip / gz file from URL in PHP

File zip / gz download from URL

ini_set('display_errors', 1);
$dbname = 'db_'.date('Ymdhis').".gz";
$url = 'http://www.domainname.com/backups/bkp30122017.gz';
file_put_contents($dbname, fopen($url, 'r'));

Extract / Uncompress GZ / ZIP file

try{
    //This input should be from somewhere else, hard-coded in this example
    $file_name = $dbname;
    // Raising this value may increase performance
    $buffer_size = 4096; // read 4kb at a time
    $out_file_name = str_replace('.gz', '.sql', $file_name);
    // Open our files (in binary mode)
    $file = gzopen($file_name, 'rb');
    $out_file = fopen($out_file_name, 'wb');
    // Keep repeating until the end of the input file
    while (!gzeof($file)) {
        // Read buffer-size bytes
        // Both fwrite and gzread and binary-safe
        fwrite($out_file, gzread($file, $buffer_size));
    }
    // Files are done, close files
    fclose($out_file);
    gzclose($file);
} catch (Exception $ex) {
    echo $ex->getMessage();
}