[php-src] Issue #11804: oci8: most tests fail out-of-the-box

Issue: https://github.com/php/php-src/issues/11804 Author: orlitzky ### Description If I build a fresh clone of php-src with, ``` # note: needs ORACLE_HOME set in the environment $ ./configure --disable-all --enable-cli --enable-pdo --with-pdo-oci --with-oci8 ``` and then run the tests, most of the oci8 tests fail: ``` $ sapi/cli/php -n ./run-tests.php -n ext/oci8/tests ... Running selected tests. FAIL oci_bind_array_by_name() and invalid values 1 [ext/oci8/tests/array_bind_001.phpt] FAIL oci_bind_array_by_name() and invalid values 2 [ext/oci8/tests/array_bind_002.phpt] BORK Fatal error: connect.inc: Failed to connect as 'system' to 'localhost/XE': ORA-12541: TNS:no listener in /home/mjo/src/php-src/ext/oci8/tests/connect.inc on line 14 [ext/oci8/tests/array_bind_003.phpt] reason: invalid output from SKIPIF BORK Fatal error: connect.inc: Failed to connect as 'system' to 'localhost/XE': ORA-12541: TNS:no listener in /home/mjo/src/php-src/ext/oci8/tests/connect.inc on line 14 [ext/oci8/tests/array_bind_004.phpt] reason: invalid output from SKIPIF ... ``` The ones that I've looked at are all expecting to be able to connect to a running Oracle DB via ext/oci8/tests/connect.inc: ``` $ cat ext/oci8/tests/connect.inc <?php require("details.inc"); if (!empty($dbase)) { $c = @oci_connect($user, $password, $dbase); } else { $c = @oci_connect($user, $password); } if (!$c) { $m = oci_error(); trigger_error("connect.inc: Failed to connect as '$user' to '$dbase': ". $m['message'], E_USER_ERROR); } ?> ``` Naturally that fails unless you've created a database at the right place and with the right credentials. The other database extensions like mysqli and pgsql handle this by skipping the tests if a connection cannot be made, as in ext/mysqli/tests/skipifconnectfailure.inc or ext/pgsql/tests/skipif.inc. I think oci8 should do the same. ### PHP Version git HEAD ### Operating System _No response_