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<?php class a { function t($str) { echo "\nHi: $str"; var_dump(debug_backtrace()); } } (new a)->test('bla');
Output for git.master, git.master_jit, rfc.property-hooks
Fatal error: Uncaught Error: Call to undefined method a::test() in /in/YTBIb:12 Stack trace: #0 {main} thrown in /in/YTBIb on line 12
Process exited with code 255.

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