PHP - check if number is prime

Question

I\'m trying to create a function which checks whether the number is prime or not. BUT I want this function to echo to the user \'prime\' or \'NOT prime\' - and that\'s where my

Answer 1

That is my solution. If you put the condition in the loop and break after it, it's never going to finish with the check.

$num = rand ( 1, 1000 );

$notPri = null;

for($check = 2; $check < $num; $check ++) {

      if ($num % $check == 0) {
          $notPri ++;
         }
       }

if ($neEpri == 0) {

    echo $num . "
Prime!";

} else {
     echo $num . "
Not a prime!";
   }