Its ok where we have one return type, and syntax error when two
What should i install to have correctly supported syntax for this, There is no mistake in code and php-interpreter accepts this fully correct use
CodePudding user response：
You need PHP 8.0 or newer to support union types
CodePudding user response：
It looks like some plugin configuration error.
What vscode plugin do you use?
I recommend to install this one - it has support of php >8.0 features, which will be useful and probably solve your problem.