hKeys 命令/方法/函数

Returns the keys in a hash, as an array of strings.

取得HASH表中的KEYS,以数组形式返回。


Parameters

Key: key


Return value

An array of elements, the keys of the hash. This works like PHP's array_keys().


Example

$redis->delete('h');

$redis->hSet('h', 'a', 'x');

$redis->hSet('h', 'b', 'y');

$redis->hSet('h', 'c', 'z');

$redis->hSet('h', 'd', 't');

var_dump($redis->hKeys('h'));


Output:

array(4) {

  [0]=>

  string(1) "a"

  [1]=>

  string(1) "b"

  [2]=>

  string(1) "c"

  [3]=>

  string(1) "d"

}


The order is random and corresponds to redis' own internal representation of the set structure.