Writing data to database - php

Question

this piece of code i have below reads data from a database, what i want to make is that when you click submit on the following form, it would write the same data to another database and when denied, it would also submit it to another different database. Can you help? since i can't get how to do it.
<?php
} else if ($usertype == 1) {
$server = "localhost";
$user = "";
$pass = "r=Sc!~";
$db = "";
$user1 = $_SESSION['username'];
$mysqli = new Mysqli($server, $user, $pass, $db) or mysqli_error($mysqli);
$overrides = $mysqli->query("SELECT * FROM Overrides WHERE professor = '$user1'");
$num_rows = mysqli_num_rows($overrides);
?>
<?php
echo " Overrides today: " . $num_rows;
?>
<form method="post" action="dbheads.php" name="HeadWritingForm" id="HeadWritingForm" autocomplete="off">
<fieldset>
<?php
while($row = mysqli_fetch_array($overrides)) {
echo "First Name: " . $row['name'] . "<br />";
echo "<br />Mid. Name: " . $row['mname'] . "<br />";
echo "<br />Fam. Name: " . $row['fname'] . "<br />";
echo "<br />Student ID: " . $row['sid'] . "<br />";
echo "<br />Scolarship: " . $row['sc'] . "<br />";
echo "<br />Phone No: " . $row['phone'] . "<br />";
echo "<br />Email: " . $row['email'] . "<br />";
echo "<br />Class: " . $row['class'] . "<br />";
echo "<br />Section: " . $row['section'] . "<br />";
echo "<br />Semester: " . $row['semester'] . "<br />";
}
?>
<br />
<div>
<label for="comments" accesskey="c">Notes & Comments:</label><br />
<textarea name="comments" cols="35" rows="10">
</textarea><br>
</div>
<br>
<input type="submit" class="submit" id="submit" value="Accept" /> <input type="submit" value="Deny"><br>
</fieldset>
</form>

Answer 1

enter code here
<?php
$server = "localhost";
$user = "";
$pass = "r=Sc!~";
$db1 = "Overrides ";
$db2 = "ONTHERDB";
$user1 = $_SESSION['username'];
$mysqli = new Mysqli($server, $user, $pass, $db1) or mysqli_error($mysqli);
$overrides = $mysqli->query("SELECT * FROM Overrides WHERE professor = '$user1'");
$num_rows = mysqli_num_rows($overrides);
$mysqli = new Mysqli($server, $user, $pass, $db2) or mysqli_error($mysqli);
while($row = mysqli_fetch_array($overrides)) {
$QUERY="INSERT INTO $db2(name,mname,fname,sid,sc,phone,email,class,section,semester)VALUES($row[0],
$row[1],$row[2],$row[3],$row[4],$row[5],$row[6],$row[7],$row[8],$row[9],$row[10] );
mysqli_query($QUERY);
}