openssl_free_key

    (PHP 4 >= 4.0.4, PHP 5, PHP 7, PHP 8)

    openssl_free_key — 释放密钥资源

    警告

    本函数已自 PHP 8.0.0 起被废弃。强烈建议不要依赖本函数。

    说明

    openssl_free_key(OpenSSLAsymmetricKey $key): void

    openssl_free_key() 从内存中释放和指定的 key 相关联的密钥。

    参数

    key

    返回值

    没有返回值。

    更新日志

    版本 说明
    8.0.0 此函数现已弃用，因为不再有效。
    8.0.0 key 现在接受 OpenSSLAsymmetricKey；之前接受类型 OpenSSL key 的 resource。

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    用户贡献的备注 2 notes

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    7
    Lawri van Bul
    7 years 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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    0
    Richard Lynch
    11 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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