src/Gzip.php
public function extract($pathExtracted)
    {
        $file = @gzopen($this->filename, 'r');

        if ($file === false) {
            $this->error = "gzopen failed";
            return false;
        }

        $output = fopen($pathExtracted, 'w');
        while (!feof($file)) {
            fwrite($output, fread($file, 1024 * 1024));
        }
        fclose($output);

        $success = gzclose($file);
        if (false === $success) {
            $this->error = "gzclose failed";
            return false;
        }

        return true;
    }
public function extract($pathExtracted)
    {
        $file = @gzopen($this->filename, 'r');

        if ($file === false) {
            $this->error = "gzopen failed";
            return false;
        }

        $output = fopen($pathExtracted, 'w');
        while (!feof($file)) {
            fwrite($output, fread($file, 1024 * 1024));
        }
        fclose($output);

        $success = gzclose($file);
        if (false === $success) {
            $this->error = "gzclose failed";
            return false;
        }

        return true;
    }
Extracts the contents of the .gz file to $pathExtracted.

@param string $pathExtracted Must be file, not directory.
@return bool true if successful, false if otherwise.