(PHP 4 >= 4.0.2, PHP 5, PHP 7 < 7.2.0, PECL mcrypt >= 1.0.0)
mcrypt_module_is_block_algorithm — ���ָ���㷨�Ƿ�Ϊ��������㷨
This function has been DEPRECATED as of PHP 7.1.0. Relying on this function is highly discouraged.
$algorithm
[, string $lib_dir
] ) : bool
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algorithm
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lib_dir
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