Laravel connection oracle problem, how to enable php's oci8 extension?

Laravel connection oracle problem

After understanding, yajra/laravel-oci8 was installed through composer, and YajraOci8Oci8ServiceProvider::class was added to config/app.php. After the terminal executed $ php artisan vendor:publish --tag=oracle, the config was configured In oracle.php, an error is reported when connecting to the database, as follows

Oracle's instantclient has been deployed and environment variables have been added to the system path, and php.ini's extension=php_oci8_12c.dll has been enabled. The problem still exists. Looking at the output of phpinfo(), it seems that the oci8 extension is not enabled