Fatal error: Uncaught PDOException: SQLSTATE[HY000]: OCISessionBegin: ORA-01017: invalid username/password; logon denied (ext\pdo_oci\oci_driver.c:691) in D:\xampp\htdocs\Test\index.php:7 Stack trace: #0 D:\xampp\htdocs\Test\index.php(7): PDO->__construct('oci:dbname=192....', 'galle ', 'tshda') #1 {main} thrown in D:\xampp\htdocs\Test\index.php on line 7