My VS Code keep showing a notification that the PHP Language Server has crashed several times in the last 3 minutes after loading a PHP project.
PHP Version on my system:
PHP 8.0.7 (cli) (built: Jun 2 2021 04:04:16) ( NTS ) Copyright (c) The PHP Group Zend Engine v4.0.7, Copyright (c) Zend Technologies
A solution is to update the packages the plugin uses to a newer version using Composer:
cd ~/.vscode/extensions/felixfbecker.php-intellisense-2.3.14/ composer update
The trick is also mentioned in an issue on the plugin's GitHub repository.