What are some best practices for calling class methods dynamically in PHP?

When calling class methods dynamically in PHP, it is important to use the `call_user_func()` or `call_user_func_array()` functions to invoke the method by name. This allows for flexibility in calling methods based on variables or user input. Additionally, make sure to check if the method exists within the class before attempting to call it dynamically.

class MyClass {
    public function myMethod() {
        echo "Hello, world!";
    }
}

$methodName = "myMethod";
$myObject = new MyClass();

if (method_exists($myObject, $methodName)) {
    call_user_func(array($myObject, $methodName));
}