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gzcompress

(PHP 4 >= 4.0.1, PHP 5)

gzcompress -- Compress a string

说明

string gzcompress ( string data [, int level] )

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

For details on the ZLIB compression algorithm see the document "ZLIB Compressed Data Format Specification version 3.3" (RFC 1950).

注: This is not the same as gzip compression, which includes some header data. See gzencode() for gzip compression.

参数

data

The data to compress.

level

The level of compression. Can be given as 0 for no compression up to 9 for maximum compression.

返回值

The compressed string or FALSE if an error occurred.

范例

例子 1. gzcompress() example

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

参见

gzdeflate()
gzinflate()
gzuncompress()
gzencode()



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gzclose上一级gzdeflate