6. Control Structures
In This Chapter
Control structures—conditionals and loops—are a staple of programming languages. PHP has two conditionals—
switch—both of which you’ll master in this chapter. Conditionals allow you to establish a test and then perform actions based on the results. This functionality provides the ability to make Web sites even more dynamic.
The discussion of
if conditionals requires introduction of two last categories of operators: comparison and logical (you’ve already seen the arithmetic and assignment operators in the previous ...