   #PHP Manual Bzip2 Compression Functions bzclose bzdecompress

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                                  bzcompress

   (4.0.4 - 4.3.2 only)
   bzcompress -- Compress a string into bzip2 encoded data

Description

   string bzcompress ( string source [, int blocksize [, int
   workfactor]])

   bzcompress() compresses the source string and returns it as bzip2
   encoded data.

   The optional parameter 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.

   The optional parameter 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.

   Example 1. bzcompress() Example
   <?php
   $str = "sample data";
   $bzstr = bzcompress($str, 9);
   echo $bzstr;
   ?>

   See also bzdecompress().
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