Function mcrypt_get_iv_size() is deprecated in codeigniter on PHP version 7.1

问题

When I encrypt my ID using encrypt library that time it gives me an error like :

Thanks for your help

回答1:

codeigniter already mention it on their official documentation of encrypt Library

This library has been DEPRECATED and is only kept for backwards compatibility. Please use the new Encryption Library.

use new Encryption Library. https://codeigniter.com/userguide3/libraries/encryption.html

回答2:

I'm using php 7.2 and I can solve using the new library encryption recommend.

Example:

// #Encrypt

$this->load->library('encryption');
$to_encrypt="some value";
$this->encryption->initialize(
        array(
                'cipher' => 'aes-256',
                'mode' => 'ctr',
                'key' => $this->config->config['encryption_key']
        )
);
echo $this->encryption->encrypt($to_encrypt);

More Info -> https://codeigniter.com/userguide3/libraries/encryption.html

来源：https://stackoverflow.com/questions/45341314/function-mcrypt-get-iv-size-is-deprecated-in-codeigniter-on-php-version-7-1