- Output for 4.3.0 - 7.1.7
- 1 is prime 2 is prime 3 is prime 4 is not prime 5 is prime 6 is not prime 7 is prime 8 is not prime 9 is not prime 10 is not prime

```
<?php
function is_prime($num) {
$n = $num - 1;
while ($n > 1) {
if (is_int($num / $n)) {
return false;
}
$n--;
}
return true;
}
header('Content-type: text/plain');
foreach (range(1,10) as $num) {
if (is_prime($num)) {
echo "$num is prime\n";
} else {
echo "$num is not prime\n";
}
}
```

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