mcrypt_enc_get_supported_key_sizes

(PHP 4 >= 4.0.2, PHP 5, PHP 7 < 7.2.0, PECL mcrypt >= 1.0.0)

mcrypt_enc_get_supported_key_sizes — Returns an array with the supported keysizes of the opened algorithm

Avertizare

This function has been DEPRECATED as of PHP 7.1.0. Relying on this function is highly discouraged.

Descrierea

mcrypt_enc_get_supported_key_sizes ( resource $td ) : array

Gets the supported key sizes of the opened algorithm.

Parametri

td

The encryption descriptor.

Valorile întoarse

Returns an array with the key sizes supported by the algorithm specified by the encryption descriptor. If it returns an empty array then all key sizes between 1 and mcrypt_enc_get_key_size() are supported by the algorithm.

Exemple

Example #1 mcrypt_enc_get_supported_key_sizes() example

<?php
    $td = mcrypt_module_open('rijndael-256', '', 'ecb', '');
    var_dump(mcrypt_enc_get_supported_key_sizes($td));
?>

Exemplul de mai sus va afișa:

array(3) {
  [0]=>
  int(16)
  [1]=>
  int(24)
  [2]=>
  int(32)
}