Normal vs. Dynamic Class Loading PHP

classLoading.php

<?php

class BicycleModel{
  //@ToDo: implement BicycleModel
}

class CarModel{
  //@ToDo: implement CarModel
}

// Normal Class Loading
$myTodayChoice = new BicycleModel();

// Dynamic Class Loading
$vehicleName = 'Bicycle';
// You should first concatenate $vehicleName & Model, then use resulting variable for creating class instance.
// Keep in mind that you're not allowed to merge class instantiation & concatenation.
// $myTodayChoice - new $vehicleName.'Model'(); IS NOT VALID
$className = $vehicleName . 'Model';
$myTodayChoice = new $className();