inflate_add

(PHP 7, PHP 8)

inflate_add — Incrementally inflate encoded data

说明

inflate_add(InflateContext $context, string $data, int $flush_mode = ZLIB_SYNC_FLUSH): string|false

Incrementally inflates encoded data in the specified context.

Limitation: header information from GZIP compressed data are not made available.

参数

context

A context created with inflate_init().

data

A 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.

返回值

Returns a chunk of uncompressed data, 或者在失败时返回 false.

错误／异常

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.

更新日志

版本 说明
8.0.0 context expects an InflateContext instance now; previously, a resource was expected.

参见