Java software engineer php-12. Variable scope

Java programmer learn php-12. Variable Scope
1.php has a more "file" Scope than Java (the formal name is "global Scope", which is valid in the current PHP file), which is the scope of the variable written in the PHP file but independent of any function. This is a bit like the global variables defined in JavaScript, but in PHP, such variables cannot be accessed inside the function.

2. What is the scope of the variables contained in the file included in the Require? If you call require () in a function, the variables in the contained file are scoped to the current function; otherwise global scope

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