Delete data from the database

<?php $con = mysql_connect("localhost","root",""); if (!$con) { die('Could not connect: ' . mysql_error()); } mysql_select_db("my_db", $con); mysql_query("DELETE FROM Students WHERE name='Harry Potter';"); $i = mysql_query("SELECT *FROM students;"); while($j= mysql_fetch_array($i)) { echo $j['student_id']. " " . $j['Section']. " " .$j['name']; echo "<br />"; } mysql_close($con); ?>