lithium\data\source\Database::encoding()
Getter/Setter for the connection's encoding. Abstract. Must be defined by child class.
Parameters
- 
							null|string
							
$encodingEither
nullto retrieve the current encoding, or a string to set the current encoding to. For UTF-8 accepts any permutation. 
Returns
string|booleanWhen $encoding is null returns the current encoding
in effect, otherwise a boolean indicating if setting the encoding
succeeded or failed. Returns 'UTF-8' when this encoding is used.
Source
	abstract public function encoding($encoding = null);