Improve routine with logical cohesion

improve-routine-logical-cohesion.php

<?php

// Example of routine with logical cohesion
function update($name, $input) {
   switch($name) {
      case 'person':
        // Stuff to update person with input data
        break;
      case 'car':
        // Stuff to update car with input data
        break;
      case 'building':
        // Stuff to update building with input data
        break;
   }
}

// You can separate this routine to three routines like this
// If the operations above use some of the same code or share data, the code should be moved into a lower-level routine
updatePerson($input);
updateCar($input);
updateBuilding($input);