laravel redis creating a set with ttl?

Question

so for creating a set I can do

Redis::sadd('example',[1,4,6,1,])

I tried many variations to also create a set with a ttl non worked:

Redis::sadd('example',100,[1,4,6,1,])
Redis::sadd('example',[1,4,6,1,],100)
Redis::saddex('example',100,[1,4,6,1,])
Redis::saddex('example',[1,4,6,1,],100)

Answer 1

For additional reference, If you want to check whether a [sorted set] key (in your case, the 'example') exists or not, You can either do the ff:

Proposal 1: (What you've preferred)

$iTtlRedisKey = Redis::ttl('example');
if ($iTtlRedisKey <= 0) {
    Redis::sadd('example', [1,4,6,1]);
    Redis::expire('example', 30);
}

$aSortedExampleSets = Redis::smembers('example');
// array(3) { [0]=> string(1) "1" [1]=> string(1) "4" [2]=> string(1) "6" }

Proposal 2: Using [exists] method

$bCheckRedisKey = Redis::exists('example');
if (boolval($bCheckRedisKey) !== true) {
    Redis::sadd('example', [1,4,6,1]);
    Redis::expire('example', 30);
}

$aSortedExampleSets = Redis::smembers('example');
// same results as well.