<?php
$username = _POST("username");
$password = _POST("password");

$un = ["eliez","greatGuy","blogger"];
$pw = ["tr789ial","abc123","23seventeen23"]
$count = 0;

for($x =0; $x < 3; $x++){
	if($username == $un[x] && $password == $pw[x])
    	count++;
  }

  if(count > 0){
    echo "You have sucessfully logged in!";
  }
  else
    echo "Your login failed"

?>