Php/docs/function.mcrypt-enc-get-key-size

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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_sizeReturns 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.