Curl::test( $capabilities = [] ): bool

604	public static function test($capabilities = []) {605		if (!function_exists('curl_init') || !function_exists('curl_exec')) {606			return false;607		}608 609		// If needed, check that our installed curl version supports SSL610		if (isset($capabilities[Capability::SSL]) && $capabilities[Capability::SSL]) {611			$curl_version = curl_version();612			if (!(CURL_VERSION_SSL & $curl_version['features'])) {613				return false;614			}615		}616 617		return true;618	}