Returns the currently active protocol for all operations

# gnupg_getprotocol

(PECL gnupg >= 0.1)

gnupg_getprotocol — Returns the currently active protocol for all operations

### 说明

function 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`.

### 示例

示例 #1 Procedural gnupg_getprotocol() example

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

示例 #2 OO gnupg_getprotocol() example

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

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