(PECL event >= 1.10.0)
EventBufferEvent::sslGetCipherVersion — Returns version of cipher used by current SSL connection
public EventBufferEvent::sslGetCipherVersion ( ) : string
Retrieves version of cipher used by current SSL connection.
Note:
This function is available only if
Eventis compiled with OpenSSL support.
This function has no parameters.
Returns the current cipher version of the SSL connection, or false on error.
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https://www.php.net/manual/en/eventbufferevent.sslgetcipherversion.php