predisHow do I use the PHP Redis zrevrange command?

The PHP Redis zrevrange command is used to get the elements of a sorted set with a score in a given range, sorted in descending order.

Example code

$redis = new Redis();
$redis->connect('127.0.0.1', 6379);
$redis->zadd('myzset', 1, 'one');
$redis->zadd('myzset', 2, 'two');
$redis->zadd('myzset', 3, 'three');
$values = $redis->zrevrange('myzset', 0, 1);

Output example

Array
(
    [0] => three
    [1] => two
)

Code explanation

1. $redis = new Redis(); - Create a new Redis instance.
2. $redis->connect('127.0.0.1', 6379); - Connect to Redis server.
3. $redis->zadd('myzset', 1, 'one'); - Add an element to a sorted set, with a score of 1.
4. $redis->zadd('myzset', 2, 'two'); - Add another element to the same sorted set, with a score of 2.
5. $redis->zadd('myzset', 3, 'three'); - Add a third element to the same sorted set, with a score of 3.
6. $values = $redis->zrevrange('myzset', 0, 1); - Get the elements of the sorted set with a score between 0 and 1, sorted in descending order.

Helpful links

• PHP Redis Documentation
• zrevrange Command

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