(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.
本函数还未编写文档，仅有参数列表。
dataThe 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);
?>
以上例程会输出：
789ccb48cdc9c95728cf2fca4901001a0b045d