How does PHP handle function redeclaration errors and what are the implications for code organization and structure?

PHP will throw a fatal error if a function is redeclared in the same scope, meaning that you cannot have two functions with the same name in the same file. To avoid this error, you can use conditional checks to determine if a function has already been declared before declaring it. This can help with code organization and structure by ensuring that functions are only declared once and preventing conflicts.

if (!function_exists('myFunction')) {
    function myFunction() {
        // Function code here
    }
}