Supported Versions: PHP 4, PHP 5, PHP 7, PHP 8
Checks whether a constant with the given name exists
<?php defined(string $constant_name): bool
<?php             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;
<?php     protected function phpBinary(): string

    {

        if (defined('PHP_BINARY')) {

            return PHP_BINARY;

        }
<?php             return PHP_BINARY;

        }



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

    }

}