Functions and classes declared anywhere in a file are pushed to the top of that file by the parser. This obscures all the edge cases. Simplest example I can thi

Functions and classes declared anywhere in a file are pushed to the top of that file by the parser. This obscures all the edge cases. Simplest example I can think of: echo foo('baz'); // error { function foo($bar) { return $bar; } // not pulled to top of file }