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PHP

Posted by Ravi Yadav
Ravi Yadav
10,152 Points

Build a basic PHP website Code Challenge Task 4 of 4

PalprimeChecker objects have a method called isPalprime(). This method does not receive any arguments. It returns true if the number property contains a palprime, and it returns false if the number property does not contain a palprime. (Tip: 17 is not a palprime.) Turn the second echo statement into a conditional that displays "is" or "is not" appropriately. The conditional should call the isPalprime method of the $checker object. If the isPalprime method returns true, then echo "is"; otherwise, echo "is not".

My answer to this is 

<?php
include('class.palprimechecker.php');

$checker = new PalprimeChecker;

$checker->number = 17;


echo "The number " . $checker->number . ' ';
if ($checker->isPalprime()) {
  echo "is";
} else {
echo "is not";
}
?>

But I get an error saying

Bummer! It seems like you are calling the right method and you have the removed various placeholder characters (##|()), but something in the output is not quite right. Please double-check the preview.

Can someone help me with what exactly is expected here?

3 Answers

Alberto Martinez Pascual
Alberto Martinez Pascual
6,714 Points
Alberto Martinez Pascual
Alberto Martinez Pascual
6,714 Points

Hello Ravi, the errors are sometimes not very precise. Perhaps is it only that you should put another echo after closing the else?:

echo "The number " . $checker->number . ' ';
if ($checker->isPalprime()) {
  echo "is";
} else {
echo "is not";
}
echo " a Palprime";
Ravi Yadav
Ravi Yadav
10,152 Points

Thank you, It did work. I tried your method and it worked. Can you please edit your answer with a period after Palprime in the last echo. Otherwise it still gives the same error. Thank you.

Andrew Dovganyuk
Andrew Dovganyuk
10,633 Points
Andrew Dovganyuk
Andrew Dovganyuk
10,633 Points

Try this it should work!

include("class.palprimechecker.php");
$checker = new PalprimeChecker();
$checker->number = 17;

if($checker -> isPalprime()){
  echo "The number " . $checker->number . " is a palprime.";
} else {
  echo "The number " . $checker->number . " is not a palprime.";
}