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PHP mcrypt_enc_get_key_size

PHP original manual for mcrypt_enc_get_key_size [ show | php.net ]

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. Relying on this function is highly discouraged.

Description

int mcrypt_enc_get_key_size ( resource $td )

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.