zlib_encode

(PHP 5 >= 5.4.0, PHP 7, PHP 8)

zlib_encode — Compress data with the specified encoding

说明

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

Compress data with the specified encoding.

警告

本函数还未编写文档，仅有参数列表。

参数

data: The data to compress.
encoding: The compression algorithm. Either ZLIB_ENCODING_RAW, ZLIB_ENCODING_DEFLATE or ZLIB_ENCODING_GZIP.
level

返回值

示例

示例 #1 zlib_encode() example

<?php
$str = 'hello world';
$enc = zlib_encode($str, ZLIB_ENCODING_DEFLATE);
echo bin2hex($enc);
?>

以上示例会输出：

789ccb48cdc9c95728cf2fca4901001a0b045d

参见

zlib_decode() - Uncompress any raw/gzip/zlib encoded data

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geniuszxy at outlook dot com ¶

2 years ago

zlib_encode, gzcompress, gzdeflate and gzencode are the same functions besides the parameter order.

zlib_encode + ZLIB_ENCODING_RAW = gzdeflate
zlib_encode + ZLIB_ENCODING_DEFLATE = gzcompress
zlib_encode + ZLIB_ENCODING_GZIP = gzencode