deflate_add
(PHP 7)
deflate_add — Incrementally deflate data
说明
deflate_add (
resource
$context
,
string $data
[,
int $flush_mode
= ZLIB_SYNC_FLUSH ] ) :
string
Incrementally deflates data in the specified context.
参数
-
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 setZLIB_NO_FLUSH
to maximize compression, andZLIB_FINISH
to terminate with the last chunk of data. See the » zlib manual for a detailed description of these constants.
返回值
Returns a chunk of compressed data, 或者在失败时返回 FALSE
.
错误/异常
If invalid arguments are given, an error of level E_WARNING
is generated.
参见
- deflate_init() - Initialize an incremental deflate context