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 PHP ❯ Functions<07>

<?php
function sum($x, $y)
{
    $total = $x + $y;
    return $total; 
}

$n = 0;

echo "<div style='font-size:22px;color:#0000cc;'>";

echo "Before the function, n = ". $n ."<br>";
$n = sum(3, 4);
echo "After the function, n = " . $n;

echo "</div>";
?>

Before the function, n = 0
After the function, n = 7