bzcompress
(PHP 4 >= 4.3.3, PHP 5, PECL bz2:1.0)
bzcompress — Compress a string into bzip2 encoded data
Description
mixed bzcompress
(
string $source
[,
int $blocksize
[,
int $workfactor
]] )
Parameters
-
source
-
The string to compress.
-
blocksize
-
Specifies the blocksize used during compression and should be a number
from 1 to 9 with 9 giving the best compression, but using more
resources to do so. blocksize
defaults to 4.
-
workfactor
-
Controls how the compression phase behaves when presented with worst
case, highly repetitive, input data. The value can be between 0 and
250 with 0 being a special case and 30 being the default value.
Regardless of the workfactor
, the generated
output is the same.
Return Values
The compressed string or number of error in case of error.
Examples
Example #1 Compressing data
<?php
$str = "sample data";
$bzstr = bzcompress($str, 9);
echo $bzstr;
?>
bzclose
