Answers for "php fatal error: uncaught errorexception: method reflectionparameter::getclass() is deprecated"

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php fatal error: uncaught errorexception: method reflectionparameter::getclass() is deprecated

THE SOLUTION

As explained here latest version of laravel 6, 7 and 8 has made changes required for php 8. all you have to do is:

1- add php 8 to your composer.json (I've kept v7.4 just in case production server does not support php 8 yet)

"php": "^7.4|^8.0",
2- to run composer update to update your laravel to the latest version

composer update
3- make sure update the following libraries since they exist in all laravel applications

PHP to php:^8.0
Faker to fakerphp/faker:^1.9.1
PHPUnit to phpunit/phpunit:^9.3
4- check for any other library which needs to be updated, contribute if they haven't supported php 8. but you should be good to go with most of the libraries since they have active contributors.

EXPLAINING THE PROBLEM

as described here

PHP 8 introduces several improvements in PHP type systems such as the introduction of Union Types, mixed type, and a few more.

With these changes, certain methods in Reflection API's ReflectionParameter yield incorrect results.

In PHP 8, the following methods from ReflectionParameter class is deprecated:

ReflectionParameter::getClass()
ReflectionParameter::isArray()
ReflectionParameter::isCallable()
ReflectionParamter::getType() is the recommended way to replace the deprecated methods. This method is available in PHP 7.0 and later.
Posted by: Guest on March-20-2021

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