PDO Erreur de connexion:
SQLSTATE[HY000]: pdo_oci_handle_factory: ORA-12543: TNS:destination host unreachable (/opt/php7/php-7.0.13/ext/pdo_oci/oci_driver.c:640)
SQLSTATE[HY000]: pdo_oci_handle_factory: ORA-12543: TNS:destination host unreachable (/opt/php7/php-7.0.13/ext/pdo_oci/oci_driver.c:640)