mcrypt_enc_get_key_size
(PHP 4 >= 4.0.2, PHP 5, PHP 7 < 7.2.0, PECL mcrypt >= 1.0.0)
mcrypt_enc_get_key_size — Returns the maximum supported keysize of the opened mode
Warning
This function has been DEPRECATED as of PHP 7.1.0 and REMOVED as of PHP 7.2.0. Relying on this function is highly discouraged.
Description
mcrypt_enc_get_key_size ( resource $td ) : int
Gets the maximum supported key size of the algorithm in bytes.
Parameters
-
td -
The encryption descriptor.
Return Values
Returns the maximum supported key size of the algorithm in bytes.
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https://www.php.net/manual/en/function.mcrypt-enc-get-key-size.php