I am afraid it is not supportive in PHP version 7.3 as the indicator shows. So that I am afraid to upgrade my PHP version from 7.2 to 7.3 please can you explain?
Getting This Text
FILE: /home/signtest/public_html/wp-content/plugins/ari-stream-quiz/libraries/plugin-update-checker/vendor/ParsedownLegacy.php
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FOUND 1 ERROR AFFECTING 1 LINE
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1412 | ERROR | Indirect access to variables, properties and methods will be evaluated strictly in left-to-right order since PHP 7.0. Use curly braces to remove ambiguity.
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FILE: /home/signtest/public_html/wp-content/plugins/ari-stream-quiz/libraries/vendor/vendor/guzzlehttp/ringphp/src/Client/CurlFactory.php
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FOUND 0 ERRORS AND 2 WARNINGS AFFECTING 2 LINES

Hello,

ParsedownLegacy.php is included only for PHP version less than 5.3.0 otherwise Parsedown.php is loaded. It is fully compatible with PHP 7.3.

CurlFactory.php contains warnings. It doesn't break functionality, but it can be deprecated in future PHP versions. This file is loaded by 3rd party library. It is used for integration with 3rd party services. We will check updates for it.

Regards,
ARI Soft

You are always very supportive Team ARI Soft. Thank You So Much, Regards.