+ 1
what's wrong with code? ain't working on playground.code in the comment
3 ответов
+ 4
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.
0
<?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>
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