# gnupg_sign

(PECL gnupg >= 0.1)

gnupg_sign — Signs a given text

### 说明

gnupg_sign ( resource `$identifier` , string `$plaintext` ) : string

Signs the given `plaintext` with the keys, which were set with gnupg_addsignkey before and returns the signed text or the signature, depending on what was set with gnupg_setsignmode.

### 参数

`identifier`

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

`plaintext`

  The plain text being signed.

### 返回值

On success, this function returns the signed text or the signature. On failure, this function returns `FALSE`.

### 范例

Example #1 Procedural gnupg_sign() example

    <?php
    $res = gnupg_init();
    gnupg_addsignkey($res,"8660281B6051D071D94B5B230549F9DC851566DC","test");
    $signed = gnupg_sign($res, "just a test");
    echo $signed;
    ?>

Example #2 OO gnupg_sign() example

    <?php
    $gpg = new gnupg();
    $gpg->addsignkey("8660281B6051D071D94B5B230549F9DC851566DC","test");
    $signed = $gpg->sign("just a test");
    echo $signed;
    ?>