Control Structures
These are examples of control structures. You may also be interested in:

 Conditional structures
 Exceptions
 Flow-control structures
 Loops

Task

List the conditional structures offered by a programming language. See Wikipedia: conditionals for descriptions.

Common conditional structures include if-then-else and switch.

Less common are arithmetic if, ternary operator and Hash-based conditionals.

Arithmetic if allows tight control over computed gotos, which optimizers have a hard time to figure out.



<?php
 
$foo = 3;
 
if ($foo == 2)
  //do something
 
if ($foo == 3)
  //do something
else
  //do something else
 
if ($foo != 0)
{
  //do something
}
else
{
  //do another thing
}
 
?>