Mini Kabibi Habibi

<?php
include_once 'database.php';
ob_start();
session_start();
$conn =mysqli_connect("localhost","root","","dts");
if (mysqli_connect_errno()) 
{
	echo "Failed to connect:".mysqli_connect_error();
	// code...
}
?>
<?php
if(isset($_POST['REGISTER'])){
	
	$username = $_POST['username'];
	$password = md5($_POST['password']);
	$role = $_POST['role'];
	$office = $_POST['office'];
	$schoolid = $_POST['schoolid'];
	$full_name = $_POST['full_name'];

	
	$sql = "INSERT INTO information (username,office,schoolid,full_name) VALUES ('$username','$office','$schoolid','$full_name')";
	 $query= mysqli_query($conn, $sql) or die(mysqli_error($conn));
	 if ($query==1) 
	 	{ 
	 		$ins="INSERT INTO accounts (username,password,role) VALUES ('$username', '$password','$role')";
	 $quey = mysqli_query($conn, $ins) or die(mysqli_error($conn));
	  if ($quey==1)
	  	// code...
	   {
		echo "<script type='text/javascript'>alert('Successful - Record Saved!'); window.location.href = 'index.php';</script>";
	 } else {
		echo "Error: " . $ins . "
" . mysqli_error($conn);
	 }
	 mysqli_close($conn);
}
}

?>