openssl_pkey_export
(PHP 4 >= 4.2.0, PHP 5)
openssl_pkey_export — Gets an exportable representation of a key into a string
说明
bool openssl_pkey_export
( mixed $key
, string &$out
[, string $passphrase
[, array $configargs
]] )
openssl_pkey_export() exports key as a PEM encoded string and stores it into out (which is passed by reference).
Note: You need to have a valid openssl.cnf installed for this function to operate correctly. See the notes under the installation section for more information.
参数
- key
-
- out
-
- passphrase
-
The key is optionally protected by passphrase .
- configargs
-
configargs can be used to fine-tune the export process by specifying and/or overriding options for the openssl configuration file. See openssl_csr_new() for more information about configargs .
返回值
如果成功则返回 TRUE，失败则返回 FALSE。
