(PHP 7)
deflate_add — Incrementally deflate data
deflate_add ( DeflateContext $context , string $data [, int $flush_mode = ZLIB_SYNC_FLUSH ] ) : string|false
Incrementally deflates data in the specified context.
context
A context created with deflate_init().
data
A chunk of data to compress.
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 compressed data, or false
on failure.
If invalid arguments are given, an error of level E_WARNING
is generated.
Version | Description |
---|---|
8.0.0 | context expects a DeflateContext instance now; previously, a resource was expected. |
© 1997–2020 The PHP Documentation Group
Licensed under the Creative Commons Attribution License v3.0 or later.
https://www.php.net/manual/en/function.deflate-add.php