I just checked the code for PHP 7.1 and in there openssl_free_key is an alias for opnessl_pkey_free (PHP_FALIAS).
This supports Richards assumption.
I would also suggest to not use the alias,
but use the openssl_pkey_free function in new code.
This is because it is more descriptive about what its intend is and is the same structure as similar function in the openssl section.openssl_free_key
(PHP 4 >= 4.0.4, PHP 5, PHP 7, PHP 8)
openssl_free_key — Free key resource
Warning
This function has been DEPRECATED as of PHP 8.0.0. Relying on this function is highly discouraged.
Description
openssl_free_key() frees the key associated with
the specified key from memory.
Parameters
key-
Return Values
No value is returned.
Changelog
| Version | Description |
|---|---|
| 8.0.0 | This function is now deprecated as it doesn't have an effect anymore. |
| 8.0.0 |
key accepts an OpenSSLAsymmetricKey now;
previously, a resource of type OpenSSL key was accepted.
|
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User Contributed Notes 2 notes
Lawri van Bul ¶
8 years ago
Richard Lynch ¶
12 years ago
openssl_free_key and openssl_pkey_free are probably aliases.
And the preferred one is probably openssl_pkey_free.