Web Design

291

CHAPTER

Creating Dynamic Pages 12

What sorts of things can I use functions for?

A function can be used for any logical block of code.

Most often, you use functions to designate a set of

code that you need to call repeatedly, but some

developers use them simply to organize the code

into blocks.

Does my function have to go at the top of the

page?

No, it merely needs to be written before it is called.

Most developers place functions at the top of the

page to keep them together and easy to find, but

they can be placed anywhere.

● When you view the page in

the browser, the function

works.

8 At the point on the page
where you want to call the
function, type echo and
then the function name
followed by parentheses and
a semi-colon.

8

TIPS