How does serve command process environment variables?

[ttc0419]

According to

framework/src/Illuminate/Foundation/Console/ServeCommand.php

Lines 96 to 119 in 09c1c04

	protected function startProcess($hasEnvironment)
	{
	$process = new Process($this->serverCommand(), null, collect($_ENV)->mapWithKeys(function ($value, $key) use ($hasEnvironment) {
	if ($this->option('no-reload') || ! $hasEnvironment) {
	return [$key => $value];
	}
	return in_array($key, [
	'APP_ENV',
	'LARAVEL_SAIL',
	'PHP_CLI_SERVER_WORKERS',
	'PHP_IDE_CONFIG',
	'XDEBUG_CONFIG',
	'XDEBUG_MODE',
	'XDEBUG_SESSION',
	]) ? [$key => $value] : [$key => false];
	})->all());
	$process->start(function ($type, $buffer) {
	$this->output->write($buffer);
	});
	return $process;
	}

Only environment variables in the arrays will be set to original values, others will be set to false. Why other environment variables are set to false?

And as a lot of people noticed, the command is not working properly on windows. It will fail with "reason ?". However, if I change the callback function to just return [$key => $value] , the serve command will run properly. Why is that and can it be changed to just return the original key value pairs?

[fbsanchez]

Hello, custom .env file seems not to be working for me (Just created this issue but in the wrong place I suspect 😅 )

#40978