Get all literal values for a property of a resource
This method will return an empty array if the resource does not has any literal values for that property.
string $resource The URI of the resource (e.g. http://example.com/joe#me):
string $property The name of the property (e.g. foaf:name):
string $lang The language to filter by (e.g. en):
array An array of values associated with the property
public function allLiterals($resource, $property, $lang = null) {
return $this
->all($resource, $property, 'literal', $lang);
}