How does the local function scope impact variable accessibility in PHP?

Local function scope in PHP impacts variable accessibility by limiting the scope of variables to within the function where they are defined. This means that variables declared inside a function are only accessible within that function and cannot be accessed from outside the function or from other functions. To make a variable accessible outside of a function, you can use the 'global' keyword to declare the variable as global within the function.

$globalVar = 10;

function myFunction() {
    global $globalVar;
    echo $globalVar; // Output: 10
}

myFunction();