/*function name($arguements) {
**statement;
**} */
function say_hello()
{
echo "Hello World! <br />";
}
say_hello();
function say_hello2($word)
{
echo "Hello {$word}! <br />";
}
say_hello2("World");
say_hello2("Universe");
$name = "John Doe";
say_hello2($name);
//$target is an internal variable that is only used within
//the function
function say_hello3($greeting, $target, $punct)
{
echo $greeting . ", " . $target . $punct . "<br />";
}
say_hello3("Greetings", $name, "!");
?>
<br />
<?php
function addition($val1, $val2)
{
$sum = $val1 + $val2;
}
echo addition(3, 4);
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>Functions</title>
</head>
<body>
<?php
/*function name($arguements) {
**statement;
**} */
function say_hello()
{
echo "Hello World! <br />";
}
say_hello();
function say_hello2($word)
{
echo "Hello {$word}! <br />";
}
say_hello2("World");
say_hello2("Universe");
?>
</body>
</html>
