How to call KeyDBs EXPIREMEMBER method from PHP

✔ Recommended Answer

I was not able to find any ready-built PHP client library with the KeyDB 'EXPIREMEMBER' function implemented, so I ended up using Redis' support for Lua scripting to solve this instead. Simple (hahaha) example below:

$redis = new Redis();$redis->connect('127.0.0.1', 6379, 1);// Add a Sorted Set member that we want to expire$redis->zAdd('key', 1, 'val1');// Prepare our Lua script to expire the member added above$script = "return redis.call('EXPIREMEMBER', KEYS[1], ARGV[1], ARGV[2])";$sha = sha1($script);// Assume script is already cached in Redis server, but load it if first attempt fails$result = $redis->evalSha($sha, ['key', 'val1', 60]);if ($result === false) {    $redis->script('load', $script);    $result = $redis->evalSha($sha, ['key', 'val1', 60]);}

Note that with Redis 7, use of functions instead of ephemeral scripts would be preferable, but this support is not yet available with PHPRedis (though it is already added to PRedis).

More information on using scripts here: https://github.com/phpredis/phpredis#scriptand here: https://redis.io/docs/manual/programmability/

Source: stackoverflow.com

Answered By: John Rix

 To call KeyDB's EXPIREMEMBER method from PHP, you can use the Redis class provided by the PHP Redis extension. This extension provides a set of classes and functions that allow PHP to communicate with Redis servers.

Here's an example:

 
 
php
// Create a Redis instance
$redis = new Redis();

// Connect to the KeyDB server
$redis->connect('127.0.0.1', 6379);

// Call the EXPIREMEMBER method
$redis->expireRemember('mykey', 3600);
 


 In this example, we first create a new Redis instance and connect to the KeyDB server using the connect method. Then, we call the expireRemember method on the Redis instance, passing in the key and the expiration time in seconds as arguments.

Note that the expireRemember method is specific to KeyDB and is not part of the standard Redis API. If you are using a different Redis server, you will need to use the standard expire method instead.

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