| Method | Description | |
|---|---|---|
| isAssoc ( array $arr ) : boolean | Determine whether given array is associative. | |
| pluck ( string $key, array &$arr, boolean $isRequired = true ) : string | null | Pluck a value out of an array. | |
| pluckArray ( array $keys, array &$arr ) : string | Pluck a subset of an array. |
