Compatibility issues with PHP 7

Hi guys,

So I’m looking to upgrade to PHP 7 on all my sites soon. And I did a compatibility issues test and here’s the errors I got for this plugin:

In the file plugins/two-factor-authentication/includes/class-simba-tfa.php
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FOUND 30 ERRORS AFFECTING 4 LINES
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657 | ERROR | Extension ‘mcrypt’ is deprecated since PHP 7.1 and removed since PHP 7.2; Use openssl (preferred) or pecl/mcrypt once available instead
657 | ERROR | Function mcrypt_get_iv_size() is deprecated since PHP 7.1 and removed since PHP 7.2; Use OpenSSL instead
657 | ERROR | The constant “MCRYPT_RIJNDAEL_128” is deprecated since PHP 7.1 and removed since PHP 7.2
657 | ERROR | The constant “MCRYPT_MODE_CBC” is deprecated since PHP 7.1 and removed since PHP 7.2
657 | ERROR | Extension ‘mcrypt’ is deprecated since PHP 7.1 and removed since PHP 7.2; Use openssl (preferred) or pecl/mcrypt once available instead
657 | ERROR | Function mcrypt_get_iv_size() is deprecated since PHP 7.1 and removed since PHP 7.2; Use OpenSSL instead
657 | ERROR | The constant “MCRYPT_RIJNDAEL_128” is deprecated since PHP 7.1 and removed since PHP 7.2
657 | ERROR | The constant “MCRYPT_MODE_CBC” is deprecated since PHP 7.1 and removed since PHP 7.2
675 | ERROR | Extension ‘mcrypt’ is deprecated since PHP 7.1 and removed since PHP 7.2; Use openssl (preferred) or pecl/mcrypt once available instead
675 | ERROR | Function mcrypt_create_iv() is deprecated since PHP 7.1 and removed since PHP 7.2; Use random_bytes() or OpenSSL instead
675 | ERROR | The constant “MCRYPT_RAND” is deprecated since PHP 7.1 and removed since PHP 7.2
675 | ERROR | Extension ‘mcrypt’ is deprecated since PHP 7.1 and removed since PHP 7.2; Use openssl (preferred) or pecl/mcrypt once available instead
675 | ERROR | Function mcrypt_create_iv() is deprecated since PHP 7.1 and removed since PHP 7.2; Use random_bytes() or OpenSSL instead
675 | ERROR | The constant “MCRYPT_RAND” is deprecated since PHP 7.1 and removed since PHP 7.2
687 | ERROR | Extension ‘mcrypt’ is deprecated since PHP 7.1 and removed since PHP 7.2; Use openssl (preferred) or pecl/mcrypt once available instead
687 | ERROR | Function mcrypt_encrypt() is deprecated since PHP 7.1 and removed since PHP 7.2; Use OpenSSL instead
687 | ERROR | The constant “MCRYPT_RIJNDAEL_128” is deprecated since PHP 7.1 and removed since PHP 7.2
687 | ERROR | The constant “MCRYPT_MODE_CBC” is deprecated since PHP 7.1 and removed since PHP 7.2
687 | ERROR | Extension ‘mcrypt’ is deprecated since PHP 7.1 and removed since PHP 7.2; Use openssl (preferred) or pecl/mcrypt once available instead
687 | ERROR | Function mcrypt_encrypt() is deprecated since PHP 7.1 and removed since PHP 7.2; Use OpenSSL instead
687 | ERROR | The constant “MCRYPT_RIJNDAEL_128” is deprecated since PHP 7.1 and removed since PHP 7.2
687 | ERROR | The constant “MCRYPT_MODE_CBC” is deprecated since PHP 7.1 and removed since PHP 7.2
695 | ERROR | Extension ‘mcrypt’ is deprecated since PHP 7.1 and removed since PHP 7.2; Use openssl (preferred) or pecl/mcrypt once available instead
695 | ERROR | Function mcrypt_decrypt() is deprecated since PHP 7.1 and removed since PHP 7.2; Use OpenSSL instead
695 | ERROR | The constant “MCRYPT_RIJNDAEL_128” is deprecated since PHP 7.1 and removed since PHP 7.2
695 | ERROR | The constant “MCRYPT_MODE_CBC” is deprecated since PHP 7.1 and removed since PHP 7.2
695 | ERROR | Extension ‘mcrypt’ is deprecated since PHP 7.1 and removed since PHP 7.2; Use openssl (preferred) or pecl/mcrypt once available instead
695 | ERROR | Function mcrypt_decrypt() is deprecated since PHP 7.1 and removed since PHP 7.2; Use OpenSSL instead
695 | ERROR | The constant “MCRYPT_RIJNDAEL_128” is deprecated since PHP 7.1 and removed since PHP 7.2
695 | ERROR | The constant “MCRYPT_MODE_CBC” is deprecated since PHP 7.1 and removed since PHP 7.2
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