.php

// Filter
		if (!empty($filter)) {
			$query->where('id', 'LIKE', "%{$filter}%");
			$query->orWhere('name', 'LIKE', "%{$filter}%");
			$query->orWhere('social_reason', 'LIKE', "%{$filter}%");
			$query->orWhere('state_insc', 'LIKE', "%{$filter}%");
			$query->orWhere('city_insc', 'LIKE', "%{$filter}%");
			$query->orWhere('cpf', 'LIKE', "%{$filter}%");
			$query->orWhere('cnpj', 'LIKE', "%{$filter}%");
			$query->orWhere('email', 'LIKE', "%{$filter}%");
			$query->orWhere('phone', 'LIKE', "%{$filter}%");
			$query->orWhere('mobile', 'LIKE', "%{$filter}%");
			$query->orWhere('address_cep', 'LIKE', "%{$filter}%");
			$query->orWhere('address_district', 'LIKE', "%{$filter}%");
			$query->orWhere('address_city', 'LIKE', "%{$filter}%");
			$query->orWhere('address_state', 'LIKE', "%{$filter}%");
			$query->orWhere('birth', 'LIKE', "%{$filter}%");
			$query->orWhere('gender', 'LIKE', "%{$filter}%");
			$query->orWhere('obs', 'LIKE', "%{$filter}%");
			$query->orWhere('type', 'LIKE', "%{$filter}%");
			$query->orWhere('contacts', 'LIKE', "%{$filter}%");
		}


// poderia ser no control:
Lib::setFilter(array(colunas,que,serão,filtradas));

//na lib
setFilter = 
foreach($column as $col=>val)
col like val