How can one effectively troubleshoot PHP Fatal Errors related to undefined methods, as seen in the forum thread?

To troubleshoot PHP Fatal Errors related to undefined methods, you should check that the method being called actually exists in the class or object being used. Make sure there are no typos or misspellings in the method name. Additionally, ensure that the method is declared as public or protected, so it can be accessed from outside the class.

class MyClass {
    public function myMethod() {
        // method implementation
    }
}

$obj = new MyClass();
$obj->myMethod(); // This will call the myMethod() method without any undefined method error