How to optimize the code, what is the best way to do it?

Question

PHP

there is this piece of code

foreach ($configuration as $module => $moduleSettings) {
      if (!class_exists($module, false)) {
        self::setUnit($module, new $module($moduleSettings));
      }
      timeRun($t++);
    }

it takes a little more than a second to execute it, the problem is in
new $module, how can you reduce the execution time?

Answer 1

Don't do new $module :)
There is nothing to optimize in this snippet. Look at the constructors of all $modules, they need to be optimized. Also take a look at setUnit...