inflate_init

(PHP 7, PHP 8)

inflate_init — Initialize an incremental inflate context

说明

inflate_init(int $encoding, array $options = []): InflateContext|false

Initialize an incremental inflate context with the specified encoding.

参数

encoding

One of the ZLIB_ENCODING_* constants.

options

An associative array which may contain the following elements:

level: The compression level in range -1..9; defaults to -1.
memory: The compression memory level in range 1..9; defaults to 8.
window: The zlib window size (logarithmic) in range 8..15; defaults to 15.
strategy: One of ZLIB_FILTERED, ZLIB_HUFFMAN_ONLY, ZLIB_RLE, ZLIB_FIXED or ZLIB_DEFAULT_STRATEGY (the default).
dictionary: A string or an array of strings of the preset dictionary (default: no preset dictionary).

返回值

Returns an inflate context resource (zlib.inflate) on success, 或者在失败时返回 false.

错误／异常

If an invalid encoding or option is passed to options, or the context couldn't be created, an error of level E_WARNING is generated.

更新日志

版本	说明
8.0.0	On success, this function returns an InflateContext instance now; previously, a resource was returned.

注释

警告

Unlike gzinflate(), incremental inflate contexts do not constrain the length of the decoded data, so provide no automatic protection against Zip bombs.

参见

inflate_add() - Incrementally inflate encoded data
deflate_init() - Initialize an incremental deflate context

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官方地址：https://www.php.net/manual/en/function.inflate-init.php

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inflate_init

说明

参数

返回值

错误／异常

更新日志

注释

参见

User Contributed Notes