Untitled

<?php
$db = new mysqli('host', 'username', 'password', 'database');

if($_SERVER['REQUEST_METHOD'] == "POST" && isset($_POST['title'], $_POST['details']))
{
    $title   = $db -> real_escape_string($_POST['title']);
    $details = $db -> real_escape_string($_POST['details']);
    $email   = '';

    if(isset($_POST['email']))
    {
        $email = $db -> real_escape_string($_POST['email']);
    }

    $db -> query("INSERT INTO `submissions` (`submission_id`, `submission_title`, `submission_details`, `contact_email`, `time_submitted`, `status`) VALUES(0, '$title', '$details', '$email', UNIX_TIMESTAMP(), 0)") or die ('Failed to submit, please try again soon');
    echo "Successfully Submitted";
}

?>
<html>
    <head>

    </head>
    <body>
        <center>
            <form action="submit.php" method="POST">
            <span style="font-size: 13px; font-family: lucida sans unicode;">
                <span style="font-size: 18px;">
                    <b>Bug/Idea Submission Form</b>
                </span>
                <p>Title:</p>
                <input type="text" name="title" /><br />
                <p>Details:</p>
                <textarea name="details" rows="25" cols="50"></textarea><br /><br />
                <p>Contact Email <i>(Optional)</i>:</p>
                <input type="text" name="email" /><br />
                <input type="submit" value="Submit!" />
            </span>
            </form>
        </center>
    </body>
</html>