/**
* Returns the cardinality of an ordered set.
*
* @param string $key
*
* @return int the set's cardinality
* @link http://redis.io/commands/zsize
* @example
* <pre>
* $redis->zAdd('key', 0, 'val0');
* $redis->zAdd('key', 2, 'val2');
* $redis->zAdd('key', 10, 'val10');
* $redis->zCard('key'); // 3
* </pre>
*/
public function zCard($key)
{
try {
return $this->client->zCard($key);
} catch (Exception $e) {
return $this->handleException($e, __FUNCTION__, func_get_args());
}
}
public function testZPopRevRange()
{
$key = 'testZPopRevRange';
$this->redis->del($key);
$this->assertSame(3, $this->redis->zAdd($key, array(123 => 1.0, 456 => 1.25, 789 => 0.9)));
$this->assertTrue($this->redis->multi());
$this->assertTrue($this->redis->zrevrange($key, 0, 0, true));
$this->assertTrue($this->redis->zremrangebyrank($key, -1, -1));
$this->assertSame(array(array(456 => '1.25'), 1), $this->redis->exec());
$this->assertSame(2, $this->redis->zCard($key));
}
