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

Entire program is correct . But only you should do replace break with exit function .because break only used to exit loop which are enclosed with curly braces {} and exit are used to stop the execution of an entire script.

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

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