Question
What will be the output of the following PHP code?
< ?php
function calc($price, $tax="")
{
$total = $price + ($price * $tax);
echo "$total";
}
calc(42);
?>
< ?php
function calc($price, $tax="")
{
$total = $price + ($price * $tax);
echo "$total";
}
calc(42);
?>
Answer: Option C
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You can designate certain arguments as optional by placing them at the end of the list and assigning them a default value of nothing.
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