Jamm\Memory\IRedisServer::zRank PHP Method

zRank() public method

The rank (or index) is 0-based, which means that the member with the lowest score has rank 0. Use ZREVRANK to get the rank of an element with the scores ordered from high to low.

public zRank ( string $key, string $member ) : integer | boolean
$key	string
$member	string
return	integer | boolean