Supported Versions: PHP 4, PHP 5, PHP 7, PHP 8
Checks whether a given named constant exists
defined(string $constant_name): bool
            return 1;

        }



        if (
config('octane.swoole.ssl'false) === true && ! defined('SWOOLE_SSL')) {

            
$this->error('You must configure Swoole with `--enable-openssl` to support ssl.');



            return 
1;
    protected function phpBinary(): string

    
{

        if (
defined('PHP_BINARY')) {

            return 
PHP_BINARY;

        }
            return PHP_BINARY;

        }



        return 
defined('PHP_BINARY') ? PHP_BINARY : (new PhpExecutableFinder())->find();

    }

}