PHP 8 업그레이드 후 Laravel 앱이 중단되면 어떻게 해야 합니까?

Laravel App Halts After PHP 8 Upgrade: Addressing Deprecated ReflectionParameter Methods

Problem:

Upgrading to PHP 8 has rendered a Laravel application dysfunctional, causing the following deprecation warnings:

Deprecated: Method ReflectionParameter::getClass() is deprecated in /Users/.../Sites/.../vendor/laravel/framework/src/Illuminate/Container/Container.php on line 871

...

Solution:

As PHP 8 introduces revisions to type systems, certain Reflection API methods within ReflectionParameter are now obsolete. To resolve this issue, follow these steps:

1. Update the composer.json file with the following:

"php": "^7.4|^8.0",

2. Execute the following command to update Laravel:

composer update

3. Ensure the following libraries are up-to-date:

PHP: ^8.0
Faker: fakerphp/faker:^1.9.1
PHPUnit: phpunit/phpunit:^9.3

4. Verify other libraries as needed for PHP 8 compatibility. Contributor contributions are encouraged for those that do not yet support PHP 8.

Explanation:

PHP 8's enhancements to type systems have caused incorrect results from certain Reflection API methods in ReflectionParameter. Hence, the following deprecated methods should be replaced with ReflectionParameter::getType():

ReflectionParameter::getClass()
ReflectionParameter::isArray()
ReflectionParameter::isCallable()

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