public function inc($num = 1)
{
if (!is_numeric($num)) {
throw new Exception('Argument supplied to inc must be a number');
}
return array("[I]" => "+" . $num);
}<?php
require_once 'MysqliDb.php';
/* updates voting colums for upvote and downvote */
$pid = $vote = $db = new MysqliDb('localhost', 'root', 'hack123', 'colgpolls');
if ($vote == 'yes') {
$data = array('upvote' => $db->inc(1));
} else {
$data = array('downvote' => $db->inc(1));
}
$db->where('pid', $pid);
$db->update('polls', $data);