Submit checkbox value to MySQL

Below example states that checkbox values can be stored into MySQL database using PHP program.

Step 1: Create a table in MySQL with following screen shot. (Table name : Booked_Status)
Step 2: Create connection string / configuration page as following example and name it ‘config2.php’
Step 3: Now create a main page called ‘checkbox2mysql.php’ with following code in it.
 <h2>Submit checkbox value to MySQL database in php</h2>
 <form method="post" action="">
Register No: <input type=text name=t1>
 <input type="checkbox" name="chk[]" value="Booked"><label>Booked</label><br/>
 <input type="checkbox" name="chk[]" value="Pending"><label>Pending</label><br/>
 <input type="checkbox" name="chk[]" value="Rejected"><label>Rejected</label><br/>
 <input type="submit" name="submit" Value="submit">

<?php error_reporting (E_ALL ^ E_NOTICE); ?>
include 'config2.php';

$query=mysql_query("select * from booked_status where regno='".$t1."' ") or die(mysql_error());

if (isset($_POST['submit']))
$chkbox = $_POST['chk'];
$i = 0;


$query = "INSERT INTO booked_status (regno, status) VALUES ('$t1','".$chkbox[$i]."')";
mysql_query($query) or die(mysql_error());
echo "<center><h2 style='background-color:green; color:white; display:inline'><span>Successfully updated.</span>";
      echo "<center><h2 style='background-color:red; color:white; display:inline'><span>The Register No. '$t1' is already present in the booking table";
Finally, run the above program and see the following output.
If you run the above program with same Reg Number more than once, it will show following alert message.
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Happy Coding!