<?php

    $a = 0;
    $b = 2;
    while($a < 1000){
            $last_digit = substr($b, -1);
            $me_prime = array(0,2,4,5,6,8);
            //echo $last_digit;

            if ( ($b==2) || (!in_array($last_digit, $me_prime)) || (sqrt($b) != floor(sqrt($b))) || (!($b%2) == 0) )
            {
                echo "$a = $b<br>";
                $a++;
                $b++;
            }else {
                $a = $a;
                $b++;
            }

    }

?>