Changes password for user with username.
connectionAn Oracle connection identifier, returned by oci_connect() or oci_pconnect().
usernameThe Oracle user name.
old_passwordThe old password.
new_passwordThe new password to be set.
dbnameThe database name.
Note: The second oci_password_change() syntax is available since version 1.1.
Note: In PHP versions before 5.0.0 you must use ocipasswordchange() instead. This name still can be used, it was left as alias of oci_password_change() for downwards compatability. This, however, is deprecated and not recommended.