[Admin]

Instead of:

if ($var == 10) {
  // do something
} elseif ($var == 15) {
  // do something else
} elseif ($var == 20) {
  // do some other thing
} else {
  // do the default
}

You can use the switch structure:

switch ($var) {
	  case '10':
		  // do something
		  break;
	  case '15':
		  // do something else
		  break;
	  case '20':
		  // do some other thing
		  break;
	  default:
		  // do the default
}