How to use equal for query?

if($con = mysqli_connect("localhost", "root", $pass))
		{
			mysqli_select_db($con, "toggery");
			mysqli_set_charset($con, "utf8");
			$p = $con->query("CALL Select_State()");
			echo"<select name='sel1'>";
		while($row = mysqli_fetch_array($p, MYSQLI_ASSOC))
		{
			echo"<option value='$row[StateID]'>$row[Name]</option>";
		}		
			echo"</select>";	
		if(isset($_POST['sbm']))
		{
			echo $s = $_POST['sel1'];
		}
		}		
		else
		{
			echo 'db error!';
		}

if($con = mysqli_connect("localhost", "root", $pass))
		{
			mysqli_select_db($con, "toggery");
			mysqli_set_charset($con, "utf8");
			$p = $con->prepare("CALL Select_State()");
			$p->execute();
			echo"<select name='sel1'>";
		while($row = mysqli_fetch_array($p, MYSQLI_ASSOC))
		{
			echo"<option value='$row[StateID]'>$row[Name]</option>";
		}		
			echo"</select>";	
		if(isset($_POST['sbm']))
		{
			echo $s = $_POST['sel1'];
		}
		}		
		else
		{
			echo 'db error!';
		}