Daniele Alessandri 93ae376618 Implement PHP iterator based on the ZSCAN command (Redis 2.8). ...

This iterator allows to perform full iterations over the members of a sorted
set by wrapping the incremental nature of ZSCAN just like we did for SCAN:

  $client = new Predis\Client('tcp://127.0.0.1', ['profile' => '2.8']);
  $iterator = new Predis\Iterator\Scan\SortedSetIterator($client, "zset_key");

  foreach ($iterator as $member => $rank) {
      echo "$rank => $member" . PHP_EOL;
  }

Being ZSCAN closely related to SCAN, it is subject to the same behaviour,
see http://redis.io/commands/scan for reference.

This iterator implementation returns the member as key and the rank as value
since the rank is a float value which would be truncated when transforming
the iteration to an array (e.g. using iterator_to_array()). Luckily PHP
preserves the insertion order for named arrays members still result sorted.

2013-11-03 14:19:07 +01:00

..

Predis

Implement PHP iterator based on the ZSCAN command (Redis 2.8).

2013-11-03 14:19:07 +01:00