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# gzencode

(PHP 4 >= 4.0.4)

gzencode -- Create a gzip compressed string

## Description

``string gzencode` (string data [, int level])`

This function returns a compressed version of the input `data` compatible with the output of the gzip program, or `FALSE` if an error is encountered. The optional parameter `level` can be given as 0 for no compression up to 9 for maximum compression, if not given the default compression level will be 1.

The resulting data contains the appropriate headers and data structure to make a standard .gz file, e.g.:

Example 1. Creating a gzip file
    <?php
    $data = implode("", "bigfile.txt");
    $gzdata = gzencode($data, 9);
    $fp = fopen("bigfile.txt.gz", "w");
    fwrite($fp, $gzdata);
    fclose($fp);
    ?>

For more information on the GZIP file format, see the document: GZIP file format specification version 4.3 (RFC 1952).

See also gzcompress(). gzuncompress(), gzdeflate(), gzinflate().

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