# gzuncompress

(PHP 4 >= 4.0.1, PHP 5, PHP 7, PHP 8)

gzuncompress — Uncompress a compressed string

### 说明

gzuncompress(string `$data`, int `$max_length` = 0): string|false

This function uncompress a compressed string.

### 参数

`data`

  The data compressed by gzcompress().

`max_length`

  The maximum length of data to decode.

### 返回值

The original uncompressed data or `false` on error.

The function will return an error if the uncompressed data is more than 32768 times the length of the compressed input `data` or more than the optional parameter `max_length`.

### 示例

示例 #1 gzuncompress() example

`<?php
$compressed = gzcompress('Compress me', 9);
$uncompressed = gzuncompress($compressed);
echo $uncompressed;
?>`

### 参见

- gzcompress() - Compress a string
- gzinflate() - Inflate a deflated string
- gzdeflate() - Deflate a string
- gzencode() - Create a gzip compressed string

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