Are there alternative methods to passing variables as arguments in PHP functions for internal access?

When passing variables as arguments in PHP functions for internal access, an alternative method is to use the global keyword to access variables defined outside the function scope. This allows you to access variables without explicitly passing them as arguments. 

$globalVar = "Hello, world!";

function accessGlobalVar() {
    global $globalVar;
    echo $globalVar;
}

accessGlobalVar(); // Output: Hello, world!

Keywords

PHP functions variables arguments internal access

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