(PECL gnupg >= 0.5)
gnupg_adddecryptkey — Add a key for decryption
$identifier
   , string $fingerprint
   , string $passphrase
   )
identifier
     The gnupg identifier, from a call to gnupg_init() or gnupg.
fingerprint
     The fingerprint key.
passphrase
     The pass phrase.
   Returns TRUE on success or FALSE on failure.
  
Example #1 Procedural gnupg_adddecryptkey() example
<?php
$res = gnupg_init();
gnupg_adddecryptkey($res,"8660281B6051D071D94B5B230549F9DC851566DC","test");
?>
Example #2 OO gnupg_adddecryptkey() example
<?php
$gpg = new gnupg();
$gpg -> adddecryptkey("8660281B6051D071D94B5B230549F9DC851566DC","test");
?>