ini_set method signature type missmatch renders fatal error

[oligus]

Q	A
PHPUnit version	8.0.3
PHP version	7.3.2
Installation Method	Composer

Thank you for PHPUnit, it is a tool that I use daily and been doing so for years. I appreciate the work you guys put into the project to keep it updated!

I have however encountered an error and I'm not sure if it is me or an actual bug but I thought I would share it here and see if you have an idea.

When using phpunit -d option (Set the value of the given PHP configuration option) a fatal error is thrown:

Fatal error: Uncaught TypeError: ini_set() expects parameter 2 to be string, bool given in /Users/oli/PhpstormProjects/refactoring/vendor/phpunit/phpunit/src/TextUI/Command.php:379
Stack trace:
#0 /Users/oli/PhpstormProjects/refactoring/vendor/phpunit/phpunit/src/TextUI/Command.php(379): ini_set('--update-snapsh...', true)
#1 /Users/oli/PhpstormProjects/refactoring/vendor/phpunit/phpunit/src/TextUI/Command.php(175): PHPUnit\TextUI\Command->handleArguments(Array)
#2 /Users/oli/PhpstormProjects/refactoring/vendor/phpunit/phpunit/src/TextUI/Command.php(164): PHPUnit\TextUI\Command->run(Array, true)
#3 /Users/oli/PhpstormProjects/refactoring/vendor/phpunit/phpunit/phpunit(61): PHPUnit\TextUI\Command::main()
#4 {main}
  thrown in /Users/oli/PhpstormProjects/refactoring/vendor/phpunit/phpunit/src/TextUI/Command.php on line 379

This is probably due to declare(strict_types=1).

ini_set method signature:

ini_set ( string $varname , string $newvalue ) : string

However, here it sets a boolean value to true:

phpunit/src/TextUI/Command.php

Line 380 in 36057af

\ini_set($ini[0], true);

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clue/term-react                    v1.2.0  Streaming terminal emulator, built on top of ReactPHP
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doctrine/collections               v1.5.0  Collections Abstraction library
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phar-io/version                    2.0.1   Library for handling version information and constraints
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phpspec/prophecy                   1.8.0   Highly opinionated mocking framework for PHP 5.3+
phpunit/php-code-coverage          7.0.2   Library that provides collection, processing, and rendering functionality for PHP code coverage information.
phpunit/php-file-iterator          2.0.2   FilterIterator implementation that filters files based on a list of suffixes.
phpunit/php-text-template          1.2.1   Simple template engine.
phpunit/php-timer                  2.0.0   Utility class for timing
phpunit/php-token-stream           3.0.1   Wrapper around PHP's tokenizer extension.
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sebastian/code-unit-reverse-lookup 1.0.1   Looks up which function or method a line of code belongs to
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symfony/process                    v4.2.3  Symfony Process Component
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theseer/tokenizer                  1.1.0   A small library for converting tokenized PHP source code into XML and potentially other formats
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