predisHow do I use Redis to get the TTL (time to live) for a value stored in PHP?

To get the TTL (time to live) for a value stored in PHP using Redis, you can use the ttl() function. This function returns the remaining time in seconds before the key will expire.

Example code

$redis = new Redis();
$redis->connect('127.0.0.1', 6379);
$ttl = $redis->ttl('key');
echo $ttl;

Output example

120

Explanation:

1. $redis = new Redis();: Create a new Redis instance.
2. $redis->connect('127.0.0.1', 6379);: Connect to the Redis server.
3. $ttl = $redis->ttl('key');: Get the TTL (time to live) for the key.
4. echo $ttl;: Print the TTL value in seconds.

Helpful links

• Redis ttl() function
• PHP Redis documentation

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