PHP built in functions/classes etc. are not recognized

After a restart of PhpStorm it started to highlight all built in classes (e.g. \Exception) as undefined and it also doesn't hint php built in functions (e.g. \trim, \strtolower) while typing. It looks like it suddenly doesn't know native php :-) What settings should I check to make everything work again?

Thank you.

1 comment

I was looking for it for half an hour and of course, right after posting this question, I found it :)

"Settings/Languages & Frameworks/PHP/PHP Runtime/Sync Extensions with Interpreter."


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