(PHP 4 >= 4.0.7, PHP 5)
mcrypt_generic_deinit — This function deinitializes an encryption module
This function terminates encryption specified by the encryption descriptor (td). It clears all buffers, but does not close the module. You need to call mcrypt_module_close() yourself. (But PHP does this for you at the end of the script.)
The encryption descriptor.
成功时返回 TRUE, 或者在失败时返回 FALSE.