deflate_add

(PHP 7)

deflate_add — Incrementally deflate data

説明

deflate_add ( resource $context , string $data [, int $flush_mode = ZLIB_SYNC_FLUSH ] ) : string

Incrementally deflates data in the specified context.

パラメータ

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.

返り値

Returns a chunk of compressed data, 失敗した場合に FALSE を返します.

エラー / 例外

If invalid arguments are given, an error of level E_WARNING is generated.

参考