[php-src] PR #25261: sapi/cli/php_cli.c: later -n and -c should supersede earlier ones

Pull Request: https://github.com/php/php-src/pull/25261 Author: orlitzky The -n and -c flags serve essentially the same purpose, to indicate which ini file should be used. The -c flag lets you name an ini file explicitly, while -n means that no ini file should be used. Typically, argument parsers will override earlier occurrences of a flag with later ones. Later occurrences of -c do indeed override earlier -c flags, but if you specify -n after -c, the -n is essentially ignored; the ini file passed to -c is loaded anyway. After updating _ext/standard/tests/ini_info/php_ini_loaded_file.phpt_ to support TEST_PHP_EXTRA_ARGS, that test fails if the extra args include -c. In particular, it fails "make test". This commit updates the argument parser so that subsequent -n override any existing -c flags, fixing the tests. See also: * https://github.com/php/php-src/pull/25236 * https://github.com/php/php-src/issues/25237