MySQL & PHP Insert Query Failing - php

Question

I know there isn't enough validation in here just going through some testing. $result always returns empty? Is my query bad? I'm new to PHP and concatenating variables into strings is not something I have grasped full. Going with the OOP form since I'm pretty familiar with it and the concepts.
Also, I know this code is terribly sloppy... just trying to dive right in =)
`
$page = new Page();
$page->title = "Add a New Item";
$page->DisplayHeader();
$page->DisplaySidebar();
if (isset($_POST['submit']))
{
// make short variable names
$name = trim($_POST['name']);
$level = intval($_POST['level']);
$slot = strtolower($_POST['slot']);
$hp = intval($_POST['hp']);
$mana = intval($_POST['mana']);
$mvs = intval($_POST['mvs']);
$int = intval($_POST['int']);
$wis = intval($_POST['wis']);
$str = intval($_POST['str']);
$dex = intval($_POST['dex']);
$con = intval($_POST['con']);
$p_ac = intval($_POST['p_ac']);
$m_ac = intval($_POST['m_ac']);
$saves = intval($_POST['saves']);
$hit = intval($_POST['hit']);
$dam = intval($_POST['dam']);
$queryOk = 1;
if (empty($name) || empty($level) || empty($slot))
{
echo '<h3>Please enter all the required fields</h3>';
$queryOk = 0;
}
// Instantiate database object and connect
# $db = new mysqli('*host*', '*user*', '*pass*', '*database*');
// Check connection to
if (mysqli_connect_errno()) {
echo 'Error: Could not connect to database, try again later';
}
$query = "INSERT INTO items (name, level, slot, hp, mana, mvs, int, wis, str, dex, con, p_ac, m_ac, saves, hit, dam)".
"V ALUES ('$name', $level, '$slot', $hp, $mana, $mvs, $int, $wis, $str, $dex, $con, $p_ac, $m_ac, $saves, $hit, $dam)";
$result = $db->query($query);
if (!$result)
{
echo '<h3>Error: Item was not entered. (Your webmaster sucks)</h3>';
}
else {
echo "<p>The items \"$name\" was successfully entered into the database. <a href=\"equipment.php\>Back to Equipment or add another item.</a></p>";
}
$db->close();
}`

Answer 1

If the space in V ALUES is actually in your code that would cause your query to fail
UPDATE
If that isn't the cause of the error use $mysqli->error to see what error occurred.
if (!$result)
{
echo '<h3>'$mysqli->error' (Your webmaster sucks)</h3>';
}

Answer 2

int is a reserved word in mysql, and you're using it as a fieldname. You'll have to escape it with backticks:
INSERT INTO ... (..., `int`, ...)
^---^-- escapes
your query:
INSERT INTO items (name, level, slot, hp, mana, mvs, int, wis, str, dex, con, p_ac, m_ac, saves, hit, dam)
^^^^--- problem here
VALUES ('$name', $level, '$slot', $hp, $mana, $mvs, $int, $wis, $str, $dex, $con, $p_ac, $m_ac, $saves, $hit, $dam)";
^^^^^---NOT here