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

Just use return:

class IsPrime
{       
function check($num)
{
    for ($i = 2; $i < $num; $i++)
    {
        if ($num % $i == 0) 
        {
            echo 'NOT prime';
            return; // that you need
        }               
    }
    echo 'Prime';           
}       
}

$x = new IsPrime();
$x->check(4);

if/else notation
return notation