functions.php

<?php


function writeMsg()
{
echo "Hello world! <br/>";
}

writeMsg(); // call the function






function familyName($fname)
{
echo "$fname Dawg.<br>";
}

familyName("Major");
familyName("Lexi");
familyName("Dritte");
familyName("Ohne");
familyName("Rose");
familyName("Nessa");





echo '<br/>'; 
function sum($x,$y)
{

$z = $x + $y;
return $z;

}

echo "5 + 10 = " . sum(5,10) . "<br>";
echo "7 + 13 = " . sum(7,13) . "<br>";
echo "2 + 4 = " . sum(2,4);