PHP SQLite display record

<?php 
// Create (connect to) SQLite database in file
  $my_conn = new PDO('sqlite:my_student.sqlite3');
// Set errormode to exceptions
  $my_conn->setAttribute(PDO::ATTR_ERRMODE,PDO::ERRMODE_EXCEPTION);
 
// Query to collect all columns of a particular record
$query="select * from student where id=3";

if($result=$my_conn->query($query)){
$row = $result->fetch(PDO::FETCH_OBJ);

//print_r($row);

echo "ID = $row->id";
echo "<br>Name = $row->name";
echo "<br>Class = $row->class";
echo "<br>Mark = $row->mark";

}
else{
echo " Not able get data ";
print_r($my_conn->errorInfo()); 
}
$my_conn = null;
?>

<?php 
require "menu.php"; 
// Create (connect to) SQLite database in file
   $my_conn = new PDO('sqlite:my_student.sqlite3');
// Set errormode to exceptions
   $my_conn->setAttribute(PDO::ATTR_ERRMODE,PDO::ERRMODE_EXCEPTION);
 
$id=3; // Student id to collect single record
//Query to collect all column of a particular record
$query="select * from student where id=:id"; 
$count = $my_conn->prepare($query);       
$count->bindParam(':id', $id,PDO::PARAM_INT,5);
if($count->execute()){
$row = $count->fetch(PDO::FETCH_OBJ);

//print_r($row);

echo "ID = $row->id";
echo "<br>Name = $row->name";
echo "<br>Class = $row->class";
echo "<br>Mark = $row->mark";

}
else{
echo " Not able get data ";
print_r($my_conn->errorInfo()); 
}
$my_conn = null;
?>

ID = 3
Name = Arnold
Class = Three
Mark = 55