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PHP Build a Simple PHP Application Wrapping Up The Project Objects

Ian Hilton
Ian Hilton
6,223 Points
Posted by Ian Hilton
Ian Hilton
6,223 Points

Can't get past Challenge Task 4 of 7 in PHP Development...

Here's the task...

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.)

Here's my answer: <?php

include ("class.palprimechecker.php");

$checker = "";

$checker = new PalprimeChecker();

$checker->PalprimeChecker = 17;

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

?>

What am I doing wrong?

1 Answer

Lonnie Wibberding
Lonnie Wibberding
18,318 Points

In this line

$checker->PalprimeChecker = 17;

should be

$checker->number = 17;

"number" is the name of the property on $checker. $checker is now a new PalprimeChecker object. You only needed that name to create it. The whole object is now in $checker.

Ian Hilton
Ian Hilton
6,223 Points
Ian Hilton
Ian Hilton
6,223 Points

Thank You so much for your reply Lonnie! I also realized that below I needed to have

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

instead of:

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