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

You can find prime numbers and non prime numbers from 1 to your limit and its count.

public function prime_checker($count){
  $counter=0;
  $no_prime=0;
  for($i=2 ; $i<=$count; $i++ ){
    for($j=2 ; $j<$i ; $j++ ){
      if($i % $j == 0){
        echo $i.'is not prime
';
        $no_prime=$i;
        break;
      }
    }
    if($i != $no_prime){
      $prime_numbers[$counter]=$i;
      $counter=$counter+1;
    }    
  }
  echo '
'.$counter.'prime numbers

';
  for($i=0 ; $i<$counter ; $i++ ){
    echo $prime_numbers[$i].' is  prime
';
  }
}