(PHP 5 >= 5.3.0, PHP 7, PHP 8, PECL phar >= 1.2.0)
Phar::getSupportedCompression — Return array of supported compression algorithms
No parameters.
   Returns an array containing any of Phar::GZ or
   Phar::BZ2, depending on the availability of
   the zlib extension or the
   bz2 extension.
  
