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# gzdeflate

(PHP 4 >= 4.0.4, PHP 5)

gzdeflate -- Deflate a string

## 说明

string gzdeflate ( string data [, int level] )

This function compress the given string using the DEFLATE data format.

For details on the DEFLATE compression algorithm see the document "DEFLATE Compressed Data Format Specification version 1.3" (RFC 1951).

## 参数

data

  The data to deflate.

level

  The level of compression. Can be given as 0 for no compression up to 9 for maximum compression. If not given, the default compression level will be the default compression level of the zlib library.

## 返回值

The deflated string or `FALSE` if an error occurred.

## 范例

例子 1. gzdeflate() example

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

## 参见

gzinflate()
gzcompress()
gzuncompress()
gzencode()

后退 | 起点 | 前进
gzcompress | 上一级 | gzencode