For some reason this function (but not mcrypt_list_algorithms()) returns each element in the array twice. If you have this problem, try array_unique(mcrypt_list_algorithms()).
(PHP 4 >= 4.0.2, PHP 5, PHP 7 < 7.2.0, PECL mcrypt >= 1.0.0)
mcrypt_enc_get_algorithms_name — Returns the name of the opened algorithm
この関数は PHP 7.1.0 で 非推奨となり、PHP 7.2.0 で削除 されました。この関数に頼らないことを強く推奨します。
This function returns the name of the algorithm.
tdThe encryption descriptor.
Returns the name of the opened algorithm as a string.
例1 mcrypt_enc_get_algorithms_name() example
<?php
$td = mcrypt_module_open(MCRYPT_CAST_256, '', MCRYPT_MODE_CFB, '');
echo mcrypt_enc_get_algorithms_name($td). "\n";
$td = mcrypt_module_open('cast-256', '', MCRYPT_MODE_CFB, '');
echo mcrypt_enc_get_algorithms_name($td). "\n";
?>上の例の出力は以下となります。
CAST-256 CAST-256
For some reason this function (but not mcrypt_list_algorithms()) returns each element in the array twice. If you have this problem, try array_unique(mcrypt_list_algorithms()).