# gnupg_getprotocol

(PECL gnupg >= 0.1)

gnupg_getprotocol — Returns the currently active protocol for all operations

### 说明

gnupg_getprotocol ( resource `$identifier` ) : int

### 参数

`identifier`

  gnupg 标识符，由对 gnupg_init() 或 gnupg 的调用生成。

### 返回值

Returns the currently active protocol, which can be one of `GNUPG_PROTOCOL_OpenPGP` or `GNUPG_PROTOCOL_CMS`.

### 范例

Example #1 Procedural gnupg_getprotocol() example

    <?php
    $res = gnupg_init();
    echo gnupg_getprotocol($res);
    ?>

Example #2 OO gnupg_getprotocol() example

    <?php
    $gpg = new gnupg();
    echo $gpg -> getprotocol();
    ?>