Insert values in database with check box in HTML and PHP

Insert values in the database with a checkbox in HTML and PHP

In this tutorial, we will try to understand the program of inserting the values in the database with the checkbox in HTML and PHP.

<?php
mysql_select_db('gender',mysql_connect('localhost','root',''));
?>
<form method="post">
<input type="checkbox" name="zz" value="male"> male<br> 
<input type="submit" name="gender" value="submit"  />
</form>
<?php
if(isset($_POST['gender']))
{
$a=$_POST['zz'];
mysql_query("insert into student(marks) VALUES('$a')");
header('location:gender.php');
}
?>