# gzuncompress

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

gzuncompress — Uncompress a compressed string

### 说明

gzuncompress ( string `$data` [, int `$length` = 0 ] ) : string

This function uncompress a compressed string.

### 参数

`data`

  The data compressed by gzcompress().

`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 `length`.

### 范例

Example #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