Declaring a Simple Function


  <?php
  function aFunction(){
      print "Music is a way of life!";
  }
  aFunction();
  ?>

1.	Create function from string
2.	Function printing text on a Web Page
3.	Declaring a Function
4.	A Simple User Function
5.	A Function Requiring Two Arguments
6.	A Function to Build Query Strings
7.	A function that calculates sales tax
8.	Accessing a Global Variable from Within a Function
9.	Build and then call a function
10.	Call the function
11.	Create a User Function
12.	Defining functions before or after calling them
13.	Creating and calling a function that accepts arguments
14.	Define constant in a function
15.	nesting functions
16.	global key word in a function
17.	Variables Defined Outside Functions Are Inaccessible from Within a Function by Default
18.	Using nested functions

Declaring a Simple Function : Definition « Functions « PHP