decorator.php

<?php

class Bomb {
  function disarm() {
    echo "Disarming...\n";
  }
  function __call($method, $args) {
    echo "Bomb::__call('$method', ...)\n";
  }
}

class BombDecorator extends Bomb {
  function __call($method, $args) {
    echo "Calling parent::$method\n";
    //return call_user_func_array("parent::$method", $args);
    return call_user_func("parent::__call", $method, $args);
  }
}

$b = new BombDecorator();
$i = 10000;
$t = microtime(true);
while($i--) {
  $b->arm();
  $b->disarm();
}
$t = microtime(true) - $t;
var_dump($t);