Welcome to the Treehouse Community

Want to collaborate on code errors? Have bugs you need feedback on? Looking for an extra set of eyes on your latest project? Get support with fellow developers, designers, and programmers of all backgrounds and skill levels here with the Treehouse Community! While you're at it, check out some resources Treehouse students have shared here.

Looking to learn something new?

Treehouse offers a seven day free trial for new students. Get access to thousands of hours of content and join thousands of Treehouse students and alumni in the community today.

Start your free trial

PHP Build a Simple PHP Application Wrapping Up The Project Objects

Julian Ptak
Julian Ptak
30,920 Points

Challenge 4 of 7 - PHP Question about Concatination and Variables

PalprimeChecker objects have a property called number. This task has two parts. First, assign that property a value of 17. Second, remove the two hash signs (##) in the first echo statement and instead concatenate the value of this number property. (Be sure to preserve the space after the two hash signs by concatenating a space after the number.)

I can't quite figure out how to get past this. This is the code I have:

<?php

include 'class.palprimechecker.php';

$checker = new PalprimeChecker();

$checker->value=17; 



echo "The number " . $checker->value . " ";
echo "(is|is not)";
echo " a palprime.";

?>

3 Answers

Hi Julian,

You've named your property value instead of number. In the real world your code would work. Try on your computer.

Jeff

TRY THIS.

<?php

include 'class.palprimechecker.php';

$checker = new PalprimeChecker();

$checker->value=17;

echo "The number ".$checker->value." "; echo "(is|is not)"; echo " a palprime.";

?>

And also, are you sure 'value' is the correct property name?

Julian Ptak
Julian Ptak
30,920 Points

Thanks... it's so obvious, it's a bit embarrassing. Thanks though!