deflate_add
PHP 7, PHP 8
deflate_add - Incrementally deflate data
Manual
deflate_add(
DeflateContext$context,
string$data,
[int$flush_mode = ZLIB_SYNC_FLUSH] ): string|false
Incrementally deflates data in the specified context.
Parameters
- 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.
Return Values
Returns a chunk of compressed data, or false on failure.
Exceptions and Errors
If invalid arguments are given, an error of level E_WARNING is generated.
Changelog
| Version | Description |
| 8.0.0 | context expects a DeflateContext instance now; previously, a resource was expected. |