php error: The Encrypt library requires the Mcrypt extension in codeigniter

Question

I have a login and sign up form and use the encrypt library to encrypt the password.. I am using Xampp for my server and my system works correctly..

code to encrypt

Answer 1

Solution works for me is

Before :

$autoload['libraries'] = array('database','session','upload','form_validation','encrypt','pagination');

After :

$autoload['libraries'] = array('database','session','upload','form_validation','pagination');

i just removed encrypt library from autoload libraries.

Answer 2

I was getting this error because i had switched from XAMPP(php5) to XAMPP(php7), for this I replaced my old CI->system->libraries->encrypt.php with new file here:encrypt.php, and it worked.

In this new file we check if mcrypt_encrypt is supported or not in __construct function with code below

   $this->_mcrypt_exists = ( ! function_exists('mcrypt_encrypt')) ? FALSE : TRUE;

and based on that we use different function between mcrypt_encode and _xor_encode like that.

Just to know, if you see this old file in __construct function you will see actual error checking

    if (($this->_mcrypt_exists = function_exists('mcrypt_encrypt')) === FALSE)
    {
        show_error('The Encrypt library requires the Mcrypt extension.');
    }

It worked for me.

Answer 3

You should install the PHP mcrypt module;

sudo apt-get install php5-mcrypt
sudo php5enmod mcrypt

And normally you will be good ;)

Answer 4

Sounds like you need to update your php version.

http://php.net/manual/en/mcrypt.requirements.php