bool openssl_private_decrypt ( string $data , string &$decrypted , mixed $key [, int $padding = OPENSSL_PKCS1_PADDING ] )
openssl_private_decrypt() decrypts data that was previous encrypted via openssl_public_encrypt() and stores the result into decrypted. You can use this function e.g. to decrypt data which were supposed only to you.
Returns TRUE on success or FALSE on failure.