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