(PHP 5 >= 5.4.0, PHP 7, PHP 8)
zlib_encode — Compress data with the specified encoding
$data
, int $encoding
, int $level
= -1): string|falseCompress data with the specified encoding.
This function is currently not documented; only its argument list is available.
data
The data to compress.
encoding
The compression algorithm. Either ZLIB_ENCODING_RAW
,
ZLIB_ENCODING_DEFLATE
or
ZLIB_ENCODING_GZIP
.
level
Example #1 zlib_encode() example
<?php$str = 'hello world';$enc = zlib_encode($str, ZLIB_ENCODING_DEFLATE);echo bin2hex($enc);?>
The above example will output:
789ccb48cdc9c95728cf2fca4901001a0b045d