(PHP 7)
inflate_add — Incrementally inflate encoded data
$context
   , string $encoded_data
   [, int $flush_mode = ZLIB_SYNC_FLUSH
  ] ) : string
   Incrementally inflates encoded data in the specified context.
  
Limitation: header information from GZIP compressed data are not made available.
contextA context created with inflate_init().
encoded_dataA chunk of compressed data.
flush_mode
      One of ZLIB_BLOCK,
      ZLIB_NO_FLUSH,
      ZLIB_PARTIAL_FLUSH,
      ZLIB_SYNC_FLUSH (default),
      ZLIB_FULL_FLUSH, ZLIB_FINISH.
      Normally you will want to set ZLIB_NO_FLUSH to
      maximize compression, and ZLIB_FINISH to terminate
      with the last chunk of data. See the » zlib manual for a
      detailed description of these constants.
     
   Returns a chunk of uncompressed data,  or FALSE on failure.
  
   If invalid parameters are given, inflating the data requires a preset
   dictionary, but none is specified, the compressed stream is corrupt or has an
   invalid checksum, an error of level E_WARNING is
   generated.