gzdeflate

(PHP 4 >= 4.0.4, PHP 5, PHP 7, PHP 8)

gzdeflateDeflate a string

Description

gzdeflate(string $data, int $level = -1, int $encoding = ZLIB_ENCODING_RAW): string|false

This function compresses the given string using the DEFLATE data format.

For details on the DEFLATE compression algorithm see the document "» DEFLATE Compressed Data Format Specification version 1.3" (RFC 1951).

Parameters

data

The data to deflate.

level

The level of compression. Can be given as 0 for no compression up to 9 for maximum compression. If not given, the default compression level will be the default compression level of the zlib library.

encoding

One of ZLIB_ENCODING_* constants.

Return Values

The deflated string or false if an error occurred.

Examples

Example #1 gzdeflate() example

<?php
$compressed 
gzdeflate('Compress me'9);
echo 
$compressed;
?>

See Also

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