SQL Insert Statement Hangs - php

Question

Here is my code. I am not getting an error statement, but the data is not inserted into the table. I tried running the query in PHPMyAdmin and it worked fine. It is also not because of user privileges.
if ($mysql->connect_errno) {
echo("Connect failed: ". $mysql->connect_error);
die();
}
echo "I am confused by this thing<br>";
if(isset($_POST['upload']) && $_FILES['userfile']['size'] > 0)
{
echo "Trying to figure out the errors!!!!<br>";
$fileName = $mysql->real_escape_string($_FILES['userfile']['name']);
$tmpName = $mysql->real_escape_string($_FILES['userfile']['tmp_name']);
$fileSize = intval($_FILES['userfile']['size']);
$fileType = $mysql->real_escape_string($_FILES['userfile']['type']);
echo $fileName."<br>";
echo $tmpName."<br>";
echo $fileSize."<br>";
echo $fileType."<br>";
//reads the file information
$fp = fopen($tmpName, 'r');
$content = fread($fp, filesize($tmpName));
$content = $mysql->real_escape_string(addslashes($content));
fclose($fp);
//this just adds slashes
This adds slashes
if(!get_magic_quotes_gpc())
{
$fileName = addslashes($fileName);
}
//This inserts into the databse
$query = "INSERT INTO upload VALUES ('', '$fileName', '$fileType', $fileSize, '$content')";
This is the line where the code messes up... It just hangs and never prints out the die message
$updateDB = $mysqli->query($query) or die($mysqli->error);
It never prints out this line.
echo "<br>File $fileName uploaded<br>";
}

Answer 1

You are working with $mysql object on the top and abruptly, you triggered your query on $mysqli object.
Change
$updateDB = $mysqli->query($query) or die($mysqli->error);
to
$updateDB = $mysql->query($query) or die($mysql->error);