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.
例
例子 1. gzcompress() example
<?php
$compressed = gzcompress('Compress me', 9);
echo $compressed;
?>
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