Qa\SoftMocks::callFunction PHP Method

    public static function callFunction($namespace, $func, $params)
    {
        if ($namespace !== '' && is_scalar($func)) {
            $ns_func = $namespace . '\\' . $func;
            if (isset(self::$func_mocks[$ns_func])) {
                if (self::$debug) {
                    self::debug("Intercepting call to {$ns_func}");
                }
                if (self::$func_mocks[$ns_func]['code'] instanceof \Closure) {
                    $func_callable = self::$func_mocks[$ns_func]['code'];
                } else {
                    $func_callable = eval("return function(" . self::$func_mocks[$ns_func]['args'] . ") use (\$params) { " . self::$func_mocks[$ns_func]['code'] . " };");
                }
                return call_user_func_array($func_callable, $params);
            }
            if (is_callable($ns_func)) {
                return call_user_func_array($ns_func, $params);
            }
        }
        if (is_scalar($func)) {
            if (isset(self::$func_mocks[$func])) {
                if (self::$debug) {
                    self::debug("Intercepting call to {$func}");
                }
                if (self::$func_mocks[$func]['code'] instanceof \Closure) {
                    $func_callable = self::$func_mocks[$func]['code'];
                } else {
                    $func_callable = eval("return function(" . self::$func_mocks[$func]['args'] . ") use (\$params) { " . self::$func_mocks[$func]['code'] . " };");
                }
                return call_user_func_array($func_callable, $params);
            }
        }
        return call_user_func_array($func, $params);
    }