Validation function doesn't work (sort of...)

Hello all, I've created this nice validation function which compares a submitted username and password to an array of acceptable values. However, at the moment it will only match the *last* key in the array. Even when I /*know*/ that I typed in the correct values (typed them in Notepad and copied and pasted them into the form) it still doesn't work. I realize this isn't the *most secure* way to do it, but it should be adaquate for what the purpose. No /really/ sensitive information is being hidden. <?php function _validateLogin($uploadedUser, $uploadedPass) {

       $md5 = md5('iseeYou');      // create the MD5 salt for crypt()
             // array of valid users
       $validUser[0] = crypt('user1', $md5);
       $validUser[1] = crypt('user2', $md5);
       $validUser[2] = crypt('user3', $md5);

       // array of valid passwords
       $validPass[0] = crypt('pass1', $md5);
       $validPass[1] = crypt('pass2', $md5);
       $validPass[2] = crypt('pass3', $md5);

       $cryptUser = crypt($upUser, $md5);  // crypt(ed) username for validation
       $cryptPass = crypt($upPass, $md5);  // crypt(ed) password for validation

       $vCount = count($validUser);    // get number of valid usernames
             // loop through results - if BOTH username & password match return TRUE
           // otherwise return FALSE
       for ($i = 0; $i < $vCount; ++$i) {
           if (($cryptUser === $validUser[$i]) &&
                   ($cryptPass === $validPass[$i])) {
               $retVal = true;
           } else {
               $retVal = false;
           }
       }
       return $retVal;     // return true if valid false otherwise

} ?> Thanks in advance for your help! Jason