src/KeywordExtractor/Modifiers/Transformers/LowerCaseTransformer.php
<?php
namespace KeywordExtractor\Modifiers\Transformers;
use KeywordExtractor\Modifiers\AbstractModifier;
class LowerCaseTransformer extends AbstractModifier
{
public function modifyToken($text)
{
return mb_strtolower($text, 'utf-8');
}
}