The [PHP 7.2 UPGRADING](https://github.com/php/php-src/blob/PHP-7.2/UPGRADING) file contains the following change: > The $errcontext error handler argument has been deprecated. However, using it does not trigger a deprecation warning for technical reasons. This may affect current error handler implementations.
The PHP 7.2 UPGRADING file contains the following change:
This may affect current error handler implementations.