Erro de contagem de registros: SELECT COUNT(*) FROM conteudo WHERE ( texto like '%expomatup�%' or titulo like '%expomatup�%' or resumo like '%expomatup�%' ) ORDER BY id DESC. Mysql informa: Illegal mix of collations (utf8mb4_unicode_ci,IMPLICIT) and (utf8_general_ci,COERCIBLE) for operation 'like'