FAQ: Introduction to PHP Functions - Default Parameters

This community-built FAQ covers the “Default Parameters” exercise from the lesson “Introduction to PHP Functions”.

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This exercise can be found in the following Codecademy content:

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FAQs on the exercise Default Parameters

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What is the error, the result is correct.

function calculateTip($num1, $num2 = "20"){
   echo $num1 + ($num2*$num1)/100;
echo calculateTip(100, 25) . "\n";
echo calculateTip(100) . "\n";
echo calculateTip(65, 15);

$num2 = “20” not correct
$num2 = 20 correct

the result is correct, what is the issue?

<?php function calculateTip($totalbill,$tip=20) {echo $totalbill + ($totalbill*($tip/100));}; echo calculateTip(100); echo calculateTip(500,30);

You need to return the result, not echo it.

te pide retornar no imprimir, ese echo es return