PHP 7.2 compatibility

The PHP complatibility plugin reports these errors and warnings:

FILE: /home/wordpress/wp-content/plugins/bwp-recaptcha/includes/class-bwp-recaptcha.php
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FOUND 0 ERRORS AND 1 WARNING AFFECTING 1 LINE
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1572 | WARNING | Function create_function() is deprecated since PHP 7.2; Use an anonymous function instead
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FILE: /home/wordpress/wp-content/plugins/bwp-recaptcha/includes/provider/recaptcha/recaptchalib.php
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FOUND 4 ERRORS AFFECTING 3 LINES
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210 | ERROR | The constant “MCRYPT_MODE_CBC” is deprecated since PHP 7.1 and removed since PHP 7.2
211 | ERROR | The constant “MCRYPT_RIJNDAEL_128” is deprecated since PHP 7.1 and removed since PHP 7.2
213 | ERROR | Function mcrypt_encrypt() is deprecated since PHP 7.1 and removed since PHP 7.2; Use OpenSSL instead
213 | ERROR | Extension ‘mcrypt’ is deprecated since PHP 7.1 and removed since PHP 7.2; Use openssl (preferred) or pecl/mcrypt once available instead
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FILE: /home/wordpress/wp-content/plugins/bwp-recaptcha/bwp-recaptcha.php
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FOUND 0 ERRORS AND 1 WARNING AFFECTING 1 LINE
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40 | WARNING | Function create_function() is deprecated since PHP 7.2; Use an anonymous function instead
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FILE: /home/wordpress/wp-content/plugins/bwp-recaptcha/vendor/kminh/bwp-framework/src/phpunit/unit-testcase.php
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FOUND 0 ERRORS AND 2 WARNINGS AFFECTING 2 LINES
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70 | WARNING | Function create_function() is deprecated since PHP 7.2; Use an anonymous function instead
71 | WARNING | Function create_function() is deprecated since PHP 7.2; Use an anonymous function instead
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