Which type of variable is strictly local to the function scope and cannot access global variables directly?

Question

PHP Intermediate — Hard

Which type of variable is strictly local to the function scope and cannot access global variables directly?

Accepted Answer

Local variables are defined within a function scope and are isolated from the global scope. While static variables also exist within a function scope, they retain their state between calls. Superglobals are accessible everywhere, and constants are globally defined, making 'Local variables' the correct answer for strict scope isolation.