PHP 7.1.12 Released

openssl_free_key

(PHP 4 >= 4.0.4, PHP 5, PHP 7)

openssl_free_keyFree key resource

说明

void openssl_free_key ( resource $key_identifier )

openssl_free_key() frees the key associated with the specified key_identifier from memory.

参数

key_identifier

返回值

没有返回值。

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User Contributed Notes 2 notes

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Richard Lynch
4 years ago
openssl_free_key and openssl_pkey_free are probably aliases.

And the preferred one is probably openssl_pkey_free.
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Lawri van Bul
14 days ago
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.
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