PHP function as parameter default
function, oop, php
Solution
Why not accept NULL values by default (test with `is_null()`) and if so call your default function?
Problem
Take the following function for example: ``` private function connect($method, $target = $this->_config->db()) { try { if (!($this->_pointer = @fopen($target, $method))) throw new Exception("Unable to connect to database"); } catch (Exception $e) { echo $e->getMessage(); } } ``` As you can see I inserted the function `$this->_config->db()` into the parameter `$target` as it's default value. I understand this is not the correct syntax and am just trying to explain my aim. `$this->_config->db()` is a getter function. Now I know I can use an anonymous function and call it via `$target` later, but I want `$target` to also accept direct string values. How could I give it a default value of the whatever is returned by `$this->_config->db()` and still be able to overwrite it with a string value?