openssl_free_key
(PHP 4 >= 4.0.4, PHP 5, PHP 7)
openssl_free_key — Free key resource
Description
openssl_free_key ( resource $key_identifier ) : void
openssl_free_key() frees the key associated with the specified key_identifier from memory.
Parameters
-
key_identifier
Return Values
No value is returned.
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https://www.php.net/manual/en/function.openssl-free-key.php