<?php

$redis = new RedisCluster(null, ['127.0.0.1:6379']);
$redis->setOption(Redis::OPT_SERIALIZER, Redis::SERIALIZER_IGBINARY);

$redis->hset('a', 'b', ['abc' => 'xyz']);
echo "hget (comp off)\n";
var_export($redis->hget('a', 'b'));
echo "\nhmget (comp off)\n";
var_export($redis->hmget('a', ['b']));

echo "\n\n";

$redis->setOption(Redis::OPT_COMPRESSION, Redis::COMPRESSION_ZSTD);
$redis->hset('c', 'd', ['abc' => 'xyz']);
echo "hget (comp on)\n";
var_export($redis->hget('c', 'd'));
echo "\nhmget (comp on)\n";
var_export($redis->hmget('c', ['d']));

hget (comp off)                                                                                                                                               
array (
  'abc' => 'xyz',
)
hmget (comp off)
array (
  'b' => 
  array (
    'abc' => 'xyz',
  ),
)

hget (comp on)                                                                                                                                                
array (                                                                                                                                                       
  'abc' => 'xyz',
)
hmget (comp on)
array (
  'd' => '(/ ' . "\0" . '' . "\0" . '' . "\0" . '' . "\0" . '' . "\0" . 'abcxyz',
)