what's wrong with code? ain't working on playground.code in the comment

Question

https://code.sololearn.com/wkx1Ztri2kBt/?ref=app

Answer 1

Please save this code on the playground and post the link to the code in your question.
It's easier to work with it like that.

Answer 2

<?php

if(is_numeric($_GET['number']) && $_GET['number'] > 0 && $_GET['number'] == round($_GET['number'], 0)){

$i = 2;

$isPrime = true;

while ($i < $_GET['number']) {

if ($_GET['number'] % $i == 0) {

// Number is not prime!

$isPrime = false;

}

$i++;

}

if ($isPrime) {

echo "<p>".$i." is a prime number!</p>";

} else {

echo "<p>".$i." is not prime.</p>";

}

} else if ($_GET) {

// User has submitted something which is not a positive whole number

echo "<p>Please enter a positive whole number.</p>";

}

?>

<p>Please enter a whole number.</p>

<form>

<input name="number" type="text">

<input type="submit" value="Go!">

</form>

Answer 3

https://code.sololearn.com/wkx1Ztri2kBt/?ref=app