function helloworld (){
echo "Hello World!
}
helloworld();
function saysomething ($something){
echo $something . "
}
Saysomething ("Hello World!"); //This would output "Hello World!"
function addvalues ($firstvalue, $secondvalue){
return $firstvalue + $secondvalue;
}
$newvalue = addvalues (1,3);
echo $newvalue;
?>